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2. Why are atoms neutral?

  • The number of electrons equal the number of protons
  • The number of neutrons are greater than the number of protons and electrons
  • They have neutrons in the atom
  • The number of electrons, protons and neutrons are the same

3. What is the relative charge of a proton?

  • -1
  • +2
  • +1
  • 0

4. What is the name given to the elements in group 0?

  • Gases
  • Transition metals
  • Noble gases
  • Acids

5. What is the atomic number?

  • The number of protons in an element
  • The number of atoms in an element
  • The number of electrons in an element
  • The number of ions in an element
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