Related Clues:

• Electron-deficient atom, e.g.
• Particle
• It may be positive or negative
• It's always charged
• It carries a charge
• Lithium-___ battery
• Cyclotron bit
• Play by Euripides
• Kind of exchange
• Electrically charged particle
• It's attractive
• K+, e.g.
• It carries a small charge
• Charge carrier
• -