betfair com sportsbook

The final article should be around 700-800 words. Introduction to Betfair Betfair is a well-established online sports betting platform that has been in operation since 2000. Founded by Andrew Black and Edward Wray, the company revolutionized the industry with its innovative concept of peer-to-peer betting. This means that users can bet against each other, not just against the house, making it a more exciting experience for many punters. Overview of Betfair.com Sportsbook The sportsbook section of Betfair.com is where you’ll find a vast array of sports and events to wager on.

Ad Disclosure

ALLTop Rated By UsersLatestPopular

Updated: -

• Cash King Palace
  new

  

  Royal Wins100% / $1500

  Casino popularity:

  Collecting more data...

  Payment methods

  • 
  • 
  • 
  • 
  • 
  • 
  • 
  • 
  • 

  Play
  • Wagering: 35 x (b)
  • Withdrawal time: 1 days
  • Minimum deposit to casino: $30
  • Bonus max bet: $5
  • Established: 2024
  • Free Spins: 200

  • 1st Deposit Bonus:100% / $1500 + 200 Free Spins
  • Bonus code: FRUIT22nd Deposit Bonus:100% / $1500 + 75 Free Spins
  • Bonus code: FRUIT33rd Deposit Bonus:75% / $3000 + 75 Free Spins
  • Bonus code: FRUIT44th Deposit Bonus:50% / $4500 + 200 Free Spins

  • Leading selection of slots
  • VISA casino site
  • HD streaming casino games
  • Newly unveiled casino
  • Signup offer now available
  • Mr. Gamble special bonuses

  Get the full details

  

  
  Show more
• Lucky Ace Palace
  

  Luck&Luxury100% / $1500

  Casino popularity:

  Collecting more data...

  Payment methods

  • 
  • 
  • 
  • 
  • 
  • 
  • 
  • 
  • 

  Play
  • Wagering: 35 x (b)
  • Withdrawal time: 1 days
  • Minimum deposit to casino: $30
  • Bonus max bet: $5
  • Established: 2024
  • Free Spins: 200

  • 1st Deposit Bonus:100% / $1500 + 200 Free Spins
  • Bonus code: FRUIT22nd Deposit Bonus:100% / $1500 + 75 Free Spins
  • Bonus code: FRUIT33rd Deposit Bonus:75% / $3000 + 75 Free Spins
  • Bonus code: FRUIT44th Deposit Bonus:50% / $4500 + 200 Free Spins

  • Leading selection of slots
  • VISA casino site
  • HD streaming casino games
  • Newly unveiled casino
  • Signup offer now available
  • Mr. Gamble special bonuses

  Get the full details

  

  
  Show more
• Starlight Betting Lounge
  

  Celestial Bet100% / $1500

  Casino popularity:

  Collecting more data...

  Payment methods

  • 
  • 
  • 
  • 
  • 
  • 
  • 
  • 
  • 

  Play
  • Wagering: 35 x (b)
  • Withdrawal time: 1 days
  • Minimum deposit to casino: $30
  • Bonus max bet: $5
  • Established: 2024
  • Free Spins: 200

  • 1st Deposit Bonus:100% / $1500 + 200 Free Spins
  • Bonus code: FRUIT22nd Deposit Bonus:100% / $1500 + 75 Free Spins
  • Bonus code: FRUIT33rd Deposit Bonus:75% / $3000 + 75 Free Spins
  • Bonus code: FRUIT44th Deposit Bonus:50% / $4500 + 200 Free Spins

  • Leading selection of slots
  • VISA casino site
  • HD streaming casino games
  • Newly unveiled casino
  • Signup offer now available
  • Mr. Gamble special bonuses

  Get the full details

  

  
  Show more
• Spin Palace Casino
  

  Win Big Now100% / $1500

  Casino popularity:

  Collecting more data...

  Payment methods

  • 
  • 
  • 
  • 
  • 
  • 
  • 
  • 
  • 

  Play
  • Wagering: 35 x (b)
  • Withdrawal time: 1 days
  • Minimum deposit to casino: $30
  • Bonus max bet: $5
  • Established: 2024
  • Free Spins: 200

  • 1st Deposit Bonus:100% / $1500 + 200 Free Spins
  • Bonus code: FRUIT22nd Deposit Bonus:100% / $1500 + 75 Free Spins
  • Bonus code: FRUIT33rd Deposit Bonus:75% / $3000 + 75 Free Spins
  • Bonus code: FRUIT44th Deposit Bonus:50% / $4500 + 200 Free Spins

  • Leading selection of slots
  • VISA casino site
  • HD streaming casino games
  • Newly unveiled casino
  • Signup offer now available
  • Mr. Gamble special bonuses

  Get the full details

  

  
  Show more
• Silver Fox Slots
  

  Elegance+Fun100% / $1500

  Casino popularity:

  Collecting more data...

  Payment methods

  • 
  • 
  • 
  • 
  • 
  • 
  • 
  • 
  • 

  Play
  • Wagering: 35 x (b)
  • Withdrawal time: 1 days
  • Minimum deposit to casino: $30
  • Bonus max bet: $5
  • Established: 2024
  • Free Spins: 200

  • 1st Deposit Bonus:100% / $1500 + 200 Free Spins
  • Bonus code: FRUIT22nd Deposit Bonus:100% / $1500 + 75 Free Spins
  • Bonus code: FRUIT33rd Deposit Bonus:75% / $3000 + 75 Free Spins
  • Bonus code: FRUIT44th Deposit Bonus:50% / $4500 + 200 Free Spins

  • Leading selection of slots
  • VISA casino site
  • HD streaming casino games
  • Newly unveiled casino
  • Signup offer now available
  • Mr. Gamble special bonuses

  Get the full details

  

  
  Show more
• Golden Spin Casino
  

  Luxury Play100% / $1500

  Casino popularity:

  Collecting more data...

  Payment methods

  • 
  • 
  • 
  • 
  • 
  • 
  • 
  • 
  • 

  Play
  • Wagering: 35 x (b)
  • Withdrawal time: 1 days
  • Minimum deposit to casino: $30
  • Bonus max bet: $5
  • Established: 2024
  • Free Spins: 200

  • 1st Deposit Bonus:100% / $1500 + 200 Free Spins
  • Bonus code: FRUIT22nd Deposit Bonus:100% / $1500 + 75 Free Spins
  • Bonus code: FRUIT33rd Deposit Bonus:75% / $3000 + 75 Free Spins
  • Bonus code: FRUIT44th Deposit Bonus:50% / $4500 + 200 Free Spins

  • Leading selection of slots
  • VISA casino site
  • HD streaming casino games
  • Newly unveiled casino
  • Signup offer now available
  • Mr. Gamble special bonuses

  Get the full details

  

  
  Show more
• Royal Fortune Gaming
  

  Opulence & Thrills100% / $1500

  Casino popularity:

  Collecting more data...

  Payment methods

  • 
  • 
  • 
  • 
  • 
  • 
  • 
  • 
  • 

  Play
  • Wagering: 35 x (b)
  • Withdrawal time: 1 days
  • Minimum deposit to casino: $30
  • Bonus max bet: $5
  • Established: 2024
  • Free Spins: 200

  • 1st Deposit Bonus:100% / $1500 + 200 Free Spins
  • Bonus code: FRUIT22nd Deposit Bonus:100% / $1500 + 75 Free Spins
  • Bonus code: FRUIT33rd Deposit Bonus:75% / $3000 + 75 Free Spins
  • Bonus code: FRUIT44th Deposit Bonus:50% / $4500 + 200 Free Spins

  • Leading selection of slots
  • VISA casino site
  • HD streaming casino games
  • Newly unveiled casino
  • Signup offer now available
  • Mr. Gamble special bonuses

  Get the full details

  

  
  Show more
• Lucky Ace Casino
  

  Luck&Luxury100% / $1500

  Casino popularity:

  Collecting more data...

  Payment methods

  • 
  • 
  • 
  • 
  • 
  • 
  • 
  • 
  • 

  Play
  • Wagering: 35 x (b)
  • Withdrawal time: 1 days
  • Minimum deposit to casino: $30
  • Bonus max bet: $5
  • Established: 2024
  • Free Spins: 200

  • 1st Deposit Bonus:100% / $1500 + 200 Free Spins
  • Bonus code: FRUIT22nd Deposit Bonus:100% / $1500 + 75 Free Spins
  • Bonus code: FRUIT33rd Deposit Bonus:75% / $3000 + 75 Free Spins
  • Bonus code: FRUIT44th Deposit Bonus:50% / $4500 + 200 Free Spins

  • Leading selection of slots
  • VISA casino site
  • HD streaming casino games
  • Newly unveiled casino
  • Signup offer now available
  • Mr. Gamble special bonuses

  Get the full details

  

  
  Show more
• Diamond Crown Casino
  

  Opulence & Fun100% / $1500

  Casino popularity:

  Collecting more data...

  Payment methods

  • 
  • 
  • 
  • 
  • 
  • 
  • 
  • 
  • 

  Play
  • Wagering: 35 x (b)
  • Withdrawal time: 1 days
  • Minimum deposit to casino: $30
  • Bonus max bet: $5
  • Established: 2024
  • Free Spins: 200

  • 1st Deposit Bonus:100% / $1500 + 200 Free Spins
  • Bonus code: FRUIT22nd Deposit Bonus:100% / $1500 + 75 Free Spins
  • Bonus code: FRUIT33rd Deposit Bonus:75% / $3000 + 75 Free Spins
  • Bonus code: FRUIT44th Deposit Bonus:50% / $4500 + 200 Free Spins

  • Leading selection of slots
  • VISA casino site
  • HD streaming casino games
  • Newly unveiled casino
  • Signup offer now available
  • Mr. Gamble special bonuses

  Get the full details

  

  
  Show more
• Victory Slots Resort
  

  Spin to Win100% / $1500

  Casino popularity:

  Collecting more data...

  Payment methods

  • 
  • 
  • 
  • 
  • 
  • 
  • 
  • 
  • 

  Play
  • Wagering: 35 x (b)
  • Withdrawal time: 1 days
  • Minimum deposit to casino: $30
  • Bonus max bet: $5
  • Established: 2024
  • Free Spins: 200

  • 1st Deposit Bonus:100% / $1500 + 200 Free Spins
  • Bonus code: FRUIT22nd Deposit Bonus:100% / $1500 + 75 Free Spins
  • Bonus code: FRUIT33rd Deposit Bonus:75% / $3000 + 75 Free Spins
  • Bonus code: FRUIT44th Deposit Bonus:50% / $4500 + 200 Free Spins

  • Leading selection of slots
  • VISA casino site
  • HD streaming casino games
  • Newly unveiled casino
  • Signup offer now available
  • Mr. Gamble special bonuses

  Get the full details

  

  
  Show more

betfair com sportsbook

The final article should be around 700-800 words.

Introduction to Betfair

Betfair is a well-established online sports betting platform that has been in operation since 2000. Founded by Andrew Black and Edward Wray, the company revolutionized the industry with its innovative concept of peer-to-peer betting. This means that users can bet against each other, not just against the house, making it a more exciting experience for many punters.

Overview of Betfair.com Sportsbook

The sportsbook section of Betfair.com is where you’ll find a vast array of sports and events to wager on. From popular football (soccer) leagues like the English Premier League to tennis tournaments like Wimbledon, and even American Football, Baseball, and Basketball, there’s something for everyone. The platform also covers less mainstream sports such as Rugby, Cricket, and Golf.

Key Features of Betfair Sportsbook

• In-Play Betting: Place bets in real-time during live events, taking advantage of changing odds.
• Live Streaming: Watch selected sporting events directly on the site or through the mobile app.
• Cash Out: Take control of your bet by cashing out early for a guaranteed profit or loss reduction.
• Price Boosts: Regular promotions that increase potential winnings on specific markets.

Markets and Bets

Betfair offers an extensive range of betting options across different sports. This includes:

Pre-Match Betting:

Place bets before the start of events, choosing from a wide variety of markets such as match winners, correct scores, and goalscorer.

In-Play Betting:

As mentioned earlier, this allows you to place bets during live events, making it possible to react to changing circumstances.

Odds and Prices

Betfair is known for its competitive odds. The platform offers a best price guarantee on selected markets, ensuring that customers receive the highest possible payout.

Safety and Security

As an online gambling company, Betfair prioritizes user safety and security. This includes:

• Licenses and Regulations: Operates under licenses from reputable authorities such as the UK Gambling Commission.
• Data Encryption: Protects customer data with robust encryption methods.
• Responsible Gaming Tools: Provides tools to help users manage their betting habits responsibly.

Betfair.com sportsbook offers a comprehensive experience for sports enthusiasts who enjoy online betting. With its wide range of markets, innovative features like cash out and in-play betting, and commitment to safety and security, it’s an attractive option for many punters.

Frequently Asked Questions

1. Q: What is Betfair Sportsbook? A: Betfair Sportsbook is the sports wagering section on the Betfair platform where users can bet on various events.

2. Q: Which sports are covered by Betfair Sportsbook? A: Betfair offers a broad spectrum of sports, including football (soccer), tennis, American Football, Baseball, Basketball, Rugby, Cricket, Golf, and others.

3. Q: What is the best price guarantee offered by Betfair? A: The best price guarantee ensures that customers receive the highest possible payout on selected markets.

Note to editor: This article has been rewritten based on the provided title and instruction, focusing on providing a comprehensive review of Betfair.com sportsbook while ensuring proper formatting as per your requirements.

top betting sites: expert reviews & best bonuses for 2023

As the online betting industry continues to grow, finding the best betting sites with top-notch features and enticing bonuses can be a daunting task. To help you navigate through the plethora of options, we’ve compiled expert reviews and highlighted the best bonuses available in 2023.

1. Betway

Expert Review

Betway has established itself as a leading name in the online betting world. Known for its user-friendly interface and extensive sportsbook, Betway offers a seamless betting experience. The site is particularly popular among football enthusiasts, offering a wide range of markets and competitive odds.

Best Bonuses

• Welcome Bonus: 100% match up to $300 on your first deposit.
• Free Bets: Regular free bets and promotions for existing users.

2. 888sport

Expert Review

888sport is renowned for its comprehensive coverage of sports events. The platform is intuitive and offers a vast array of betting options, including live betting. The site’s security measures and customer support are top-notch, ensuring a safe and reliable betting environment.

Best Bonuses

• Welcome Bonus: \(30 in free bets with a \)10 deposit.
• Daily Deals: Exclusive daily promotions and enhanced odds.

3. William Hill

Expert Review

William Hill is a venerable name in the betting industry, known for its robust sportsbook and casino offerings. The site’s extensive market coverage and competitive odds make it a favorite among seasoned bettors. William Hill also excels in live betting, offering real-time updates and in-play betting options.

Best Bonuses

• Welcome Bonus: Bet \(10 and get \)30 in free bets.
• Acca Insurance: Money-back offers on accumulator bets.

4. Bet365

Expert Review

Bet365 is a global leader in online betting, offering a comprehensive sportsbook and casino. The site’s live streaming feature is a standout, allowing users to watch and bet on their favorite sports events in real-time. Bet365’s user interface is highly customizable, catering to individual preferences.

Best Bonuses

• Welcome Bonus: Up to $50 in bet credits.
• Parlay Bonus: Enhanced odds on parlay bets.

5. Unibet

Expert Review

Unibet is a versatile betting platform that caters to both sports and casino enthusiasts. The site’s clean design and easy navigation make it a popular choice among users. Unibet’s live betting section is particularly robust, offering a wide range of in-play markets.

Best Bonuses

• Welcome Bonus: 100% match up to $500 on your first deposit.
• Risk-Free Bet: Up to $200 risk-free bet on your first wager.

6. Paddy Power

Expert Review

Paddy Power is known for its quirky and innovative promotions. The site offers a comprehensive sportsbook with competitive odds and a wide range of markets. Paddy Power’s customer service is exceptional, providing ²⁴⁄₇ support to users.

Best Bonuses

• Welcome Bonus: Bet \(20 and get \)60 in free bets.
• Money-Back Specials: Regular money-back offers on selected markets.

7. Betfair

Expert Review

Betfair is a pioneer in the betting exchange model, allowing users to set their own odds and bet against each other. The site’s sportsbook is comprehensive, and the exchange offers unique betting opportunities. Betfair’s live betting platform is one of the best in the industry.

Best Bonuses

• Welcome Bonus: Up to $100 in free bets.
• Refer-a-Friend: Earn bonuses by referring friends to the platform.

Choosing the right betting site can significantly enhance your online betting experience. Each of the sites mentioned above offers unique features and enticing bonuses. Whether you’re a seasoned bettor or a newcomer, these top betting sites provide a secure and enjoyable platform to place your bets.

top 10 latest betting sites for 2023: best options & reviews

As the online betting industry continues to evolve, new platforms are emerging, offering innovative features and competitive odds. Whether you’re into sports betting, casino games, or virtual sports, the following list of the top 10 latest betting sites for 2023 provides a comprehensive overview of the best options available.

1. Betway

Overview: Betway is a well-established betting site that has recently revamped its platform to offer a more user-friendly experience.

Features:

• Wide range of sports betting options
• Live streaming and in-play betting
• Extensive casino games including slots, roulette, and blackjack
• Mobile app available for iOS and Android

Review: Betway continues to impress with its competitive odds and excellent customer service. The new interface is sleek and easy to navigate.

2. 888Sport

Overview: 888Sport is a popular betting site known for its comprehensive sportsbook and generous promotions.

Features:

• Extensive coverage of major sports events
• Daily odds boosts and special offers
• User-friendly mobile betting platform
• Live betting and streaming options

Review: 888Sport stands out for its excellent mobile experience and frequent promotions, making it a top choice for both casual and serious bettors.

3. Unibet

Overview: Unibet offers a diverse range of betting options, from sports to casino games and poker.

Features:

• Comprehensive sportsbook with competitive odds
• Live betting and streaming services
• Wide selection of casino games and live dealer options
• Dedicated poker platform

Review: Unibet’s versatility and strong reputation for customer support make it a reliable choice for bettors of all levels.

4. Bet365

Overview: Bet365 is a global leader in online betting, known for its extensive sports coverage and innovative features.

Features:

• Extensive sports betting options, including niche markets
• Live streaming of thousands of events
• In-play betting with real-time updates
• Casino, poker, and bingo options

Review: Bet365’s comprehensive offerings and user-friendly interface continue to set the standard in the industry.

5. William Hill

Overview: William Hill is a trusted name in the betting world, offering a wide range of betting options and excellent customer service.

Features:

• Comprehensive sportsbook with competitive odds
• Live betting and streaming services
• Extensive casino and live dealer games
• Mobile betting app with a user-friendly interface

Review: William Hill’s long-standing reputation and commitment to customer satisfaction make it a top choice for bettors.

6. Paddy Power

Overview: Paddy Power is known for its quirky marketing and extensive betting options.

Features:

• Wide range of sports betting options
• Live betting and streaming services
• Extensive casino games and live dealer options
• Unique promotions and offers

Review: Paddy Power’s fun and engaging approach to betting, combined with its strong offerings, make it a popular choice among users.

7. Betfair

Overview: Betfair is a pioneer in the betting exchange model, offering users the ability to set their own odds.

Features:

• Betting exchange with competitive odds
• Comprehensive sportsbook
• Live betting and streaming services
• Extensive casino and poker options

Review: Betfair’s innovative approach to betting and strong community of users make it a unique and rewarding platform.

8. Ladbrokes

Overview: Ladbrokes is a well-established betting site with a strong presence in the UK and beyond.

Features:

• Comprehensive sportsbook with competitive odds
• Live betting and streaming services
• Extensive casino and live dealer games
• Mobile betting app with a user-friendly interface

Review: Ladbrokes’ strong brand and comprehensive offerings make it a reliable choice for bettors.

9. Coral

Overview: Coral offers a wide range of betting options, from sports to casino games and virtual sports.

Features:

• Comprehensive sportsbook with competitive odds
• Live betting and streaming services
• Extensive casino and live dealer games
• Virtual sports betting options

Review: Coral’s diverse offerings and strong customer support make it a top choice for bettors.

10. Betfred

Overview: Betfred is known for its extensive sports betting options and unique promotions.

Features:

• Comprehensive sportsbook with competitive odds
• Live betting and streaming services
• Extensive casino and live dealer games
• Unique promotions and offers

Review: Betfred’s strong sports betting options and engaging promotions make it a popular choice among users.

The online betting landscape is constantly evolving, with new platforms offering innovative features and competitive odds. The top 10 latest betting sites for 2023 provide a diverse range of options, catering to different preferences and levels of experience. Whether you’re a seasoned bettor or new to the world of online betting, these platforms offer something for everyone.

top 20 best betting sites for 2023: expert reviews & ratings

In the ever-evolving world of online betting, choosing the right platform can make all the difference. Whether you’re into football betting, casino games, or electronic slot machines, the quality of the betting site can impact your overall experience. Here, we present the top 20 best betting sites for 2023, complete with expert reviews and ratings.

1. Bet365

• Rating: 9.⁸⁄₁₀
• Expert Review: Bet365 is a powerhouse in the online betting industry, offering a vast array of sports betting options, live streaming, and a robust casino section. Their user-friendly interface and excellent customer support make them a top choice.

2. William Hill

• Rating: 9.⁷⁄₁₀
• Expert Review: William Hill is a trusted name with a long history in the betting world. They offer extensive sports betting markets, a top-notch casino, and a user-friendly mobile app.

3. Betway

• Rating: 9.⁶⁄₁₀
• Expert Review: Betway is known for its competitive odds, especially in football betting. They also offer a wide range of casino games and a generous welcome bonus.

4. 888Sport

• Rating: 9.⁵⁄₁₀
• Expert Review: 888Sport provides a comprehensive sportsbook with a focus on European markets. Their casino section is equally impressive, featuring popular games like baccarat and electronic slot machines.

5. Paddy Power

• Rating: 9.⁴⁄₁₀
• Expert Review: Paddy Power is famous for its quirky marketing and excellent betting options. They offer a wide range of sports betting markets and a diverse casino section.

6. Unibet

• Rating: 9.³⁄₁₀
• Expert Review: Unibet is a reliable choice for both sports betting and casino games. They offer competitive odds, live betting, and a user-friendly platform.

7. Ladbrokes

• Rating: 9.²⁄₁₀
• Expert Review: Ladbrokes is a well-established brand with a strong presence in the UK. They offer a comprehensive sportsbook and a variety of casino games.

8. Betfair

• Rating: 9.¹⁄₁₀
• Expert Review: Betfair is renowned for its exchange betting platform, which allows users to set their odds. They also offer a traditional sportsbook and a robust casino.

9. Bwin

• Rating: 9.0/10
• Expert Review: Bwin is a global player with a strong focus on football betting. They offer a wide range of markets and a solid casino section.

10. Coral

• Rating: 8.⁹⁄₁₀
• Expert Review: Coral is a trusted name in the UK betting scene. They offer a comprehensive sportsbook and a variety of casino games.

11. Betfred

• Rating: 8.⁸⁄₁₀
• Expert Review: Betfred is known for its extensive range of promotions and bonuses. They offer a wide range of sports betting markets and a decent casino section.

12. Sky Bet

• Rating: 8.⁷⁄₁₀
• Expert Review: Sky Bet is part of the Sky Sports brand, offering a comprehensive sportsbook with a focus on UK markets. They also have a decent casino section.

13. MansionBet

• Rating: 8.⁶⁄₁₀
• Expert Review: MansionBet offers competitive odds and a wide range of sports betting markets. Their casino section is also worth exploring.

14. 10Bet

• Rating: 8.⁵⁄₁₀
• Expert Review: 10Bet is a reliable choice for sports betting, especially football. They offer competitive odds and a decent casino section.

15. BetVictor

• Rating: 8.⁴⁄₁₀
• Expert Review: BetVictor is known for its competitive odds and extensive sports betting markets. They also offer a variety of casino games.

16. Betsson

• Rating: 8.³⁄₁₀
• Expert Review: Betsson offers a comprehensive sportsbook and a wide range of casino games. They are known for their user-friendly platform.

17. Intertops

• Rating: 8.²⁄₁₀
• Expert Review: Intertops is one of the oldest online betting sites, offering a wide range of sports betting markets and casino games.

18. 1xBet

• Rating: 8.¹⁄₁₀
• Expert Review: 1xBet is known for its extensive sports betting options, especially in football. They also offer a wide range of casino games.

19. Spin Palace

• Rating: 8.0/10
• Expert Review: Spin Palace is a top choice for casino enthusiasts, offering a wide range of games, including electronic slot machines and baccarat.

20. LeoVegas

• Rating: 7.⁹⁄₁₀
• Expert Review: LeoVegas is known for its mobile-first approach, offering a top-notch mobile betting experience. They also have a strong casino section.

These top 20 betting sites for 2023 offer a diverse range of options for both sports betting and casino games. Whether you’re a seasoned bettor or a newcomer, these platforms provide a high-quality experience with competitive odds and a variety of games.

Frequently Questions