Snapquiz - Electron Structure

Question 1. A chlorine atom has a mass number of 35 and an atomic number of 17. How many electrons does it have?

52.
17.
18.
35.

Question 2. 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 3. An argon atom has a proton number of 18 and a mass number of 40. How many electrons are in its outer shell?

8.
22.
40.
18.

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

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

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.
2.
4.
1.

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