Atoms + overall charge

• What is the relative charge of a proton?

  +1
• What is the relative charge of an electron?

  • 1
• What does it mean for an atom to have an overall charge of zero?

  It has equal protons and electrons
• How do protons and neutrons affect an atom's charge?

  They cancel each other out
• What are isotopes?

  • Atoms with the same number of protons
  • Different numbers of neutrons
• What happens to an atom when it gains or loses neutrons?

  It becomes an isotope
• What happens to an atom when it gains or loses electrons?

  It becomes an ion
• What is the relationship between atoms, isotopes, and ions?

  • Atoms can become isotopes by gaining or losing neutrons
  • Atoms can become ions by gaining or losing electrons