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

8.
4.
16.
6.


Question 2. A lithium atom has a proton number of 3 and a mass number of 7. How many electrons does it have?

3.
4.
7.
10.


Question 3. A phosphorus atom has a mass number of 30 and a proton number of 15. How many electron shells does it have?

4.
1.
3.
2.


Question 4. What is the maximum number of electrons which can fit in the first three orbits/shells respectively?

4,6,8.
2,4,8.
8,8,8.
2,8,8.


Question 5. A hydrogen atom has a mass number of 1 and a proton number of 1. How many electrons are in its outer shell?

0.
1.
4.
2.


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