Chemistry Unit 1

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1. Why is there an equal amount of protons and electrons?

  • because atoms are neutral so it must have an equal amount of each other so they cancel out the charges
  • Because the protons are negative and so are the electrons
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Other questions in this quiz

2. What is the Mass of a Neutron and Proton?

  • 2
  • 1
  • 0

3. Location of the Electron?

  • Energy level
  • the Nucleus

4. If the Mass number of sodium is 23 and the atomic number is 11, how many neutrons are there?

  • 18
  • 12
  • 13
  • 34

5. How do you work out the rate of a reaction?

  • change in volume or mass divided by change in time
  • change in time divided by change in volume or mass
  • change in temperature multiplied by volume


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