Chemistry Unit 1
- Created by: ellerevision
- Created on: 09-12-15 23:05
Other questions in this quiz
2. 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
3. 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
4. Location of the Electron?
- Energy level
- the Nucleus
5. If the Mass number of sodium is 23 and the atomic number is 11, how many neutrons are there?
- 34
- 13
- 12
- 18
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