Snapquiz - Electron Structure

This is the Snapquiz on Electron Structure. Click here or use the embedded video if you haven't watched the lesson yet.


Question 1. A hydrogen atom has a mass number of 1 and a proton number of 1. How many electrons are in its outer shell?

2.
1.
4.
0.


Question 2. An argon atom has a proton number of 18 and a mass number of 40. How many electrons are in its outer shell?

22.
18.
40.
8.


Question 3. An oxygen atom has a atomic number of 8 and a mass number of 16. How many electrons are in its outer shell?

16.
6.
8.
4.


Question 4. A lithium atom has a proton number of 3 and a mass number of 7. How many electrons does it have?

7.
10.
3.
4.


Question 5. A phosphorus atom has a mass number of 30 and a proton number of 15. How many electron shells does it have?

3.
2.
4.
1.


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