1. How do you work out the number of neutrons in an atom?

  • the nucleon number minus the proton number
  • proton number add the nucleon number
  • proton number minus the nucleon number
  • nucleon number multiplied by the proton number
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2. What is the structure of the noble gases?

  • They have a full outer shell
  • They dont have a full outer shell of electrons
  • They have one electron on their outer shell
  • They share electrons

3. True or fasle-Atoms of elements in the same group in the periodic table have the same number of valence electrons

  • true
  • false

4. In a giant ionic structure, how do the attraction forces act?

  • Very weakly
  • Very strongly
  • There isnt any atrraction forces
  • Weakly

5. When is a double covalent bond formed?

  • When two pairs of electrons are shared between two atoms
  • When three pairs of electrons are shared between two atoms
  • When two atoms are borrowed by another atom
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