Physical Science Ions Quiz

1. Which one of the following will most likely form a cation?

• Oxygen

• Sodium

• Nitrogen

• Xenon

2. Which one of the following will be most likely to gain electrons?

• Magnesium

• Iron

• Potassium

• Chlorine

3. Which one of the following will form a positively charged ion?

• Lithium

• Bromine

• Helium

• Fluorine

4. All of the following have 2 valence electrons EXCEPT...

• Barium.

• Calcium.

• Sulfur

• Strontium.

5. How many electrons does iodine have in its outer shell?

• 7

• 6

• 8

• 1

6. What is the oxidation number for oxygen?

• +1

• +2

• -2

• -1

7. Ca⁺² is the symbol for the __________ ion.

• calcium

• carbon

• chlorine

• cobalt

8. How many electrons can the electron shell closest to the nucleus hold?

• 18

• 8

• 2

• 0

9. An element has 1 valence electron. This element will be in the ________________ family.

• Alkaline Earth Metal

• Alkali Metal

• Noble Gase

• Halogen

10. Which of the following is a metal?

• sulfur

• helium

• bromine

• sodium