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19 questions
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- 1. Multiple Choice
What is the atomic mass of Neon?
10
20.18
10.18
11
- 2. Multiple ChoiceHow many protons are in Beryllium?4952
- 3. Multiple ChoiceHow many neutrons are in a Gold atom?79196118275
- 4. Multiple ChoiceWhat is the atomic mass of Gold?79196.9665117275
- 5. Multiple Choice
How many protons does an atom of Chromium have?
52
24
28
12
- 6. Multiple Choice
How many electrons does an atom of Gallium have?
70
31
39
15
- 7. Multiple Choice
How many neutrons does an atom of boron have?
11
5
6
13
- 8. Multiple Choice
How many protons does an atom of Chlorine have?
35
17
18
52
- 9. Multiple Choice
Which particle has a mass of approximately one atomic mass unit and a unit positive charge?
neutron
proton
electorn
- 10. Multiple Choice
Which statement is true about a proton and an electron?
same masses and same charges
same masses and different charges
different masses and the same charges
different masses and different charges
- 11. Multiple Choice
Which two particles have opposite charges?
electron, neutron
electron , proton
proton, neutron
proton, positron
- 12. Multiple Choice
An atom is electrically neutral because the
number of protons equals the number of electrons
number of protons equals the number of neutrons
ratio of the number of neutrons to the number of electrons is 1:1
ratio of the number of neutrons to the number of protons is 2:1
- 13. Multiple Choice
Which of the following particles has the least mass?
electrons
protons
neutrons
- 14. Multiple Choice
Which subatomic particle is electrically neutral?
proton
neutron
electron
- 15. Multiple Choice
Where is the proton located?
In the very dense nucleus
Floating around in the negative electron cloud
in the electrons
the positive electron cloud
- 16. Multiple ChoiceHow many electrons does a Hydrogen atom have?1230
- 17. Multiple ChoiceHow many neutrons does an Oxygen atom have?816247.999
- 18. Multiple ChoiceWhat is the number highlighted?Atomic numberAtomic massNumber of protonsNumber of electons
- 19. Multiple Choice
An atom is atomic #9 and has a mass number of 19. How many neutrons does it have?
9
28
10
19
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