Quiz 4

Which element(s) are in Group 2? Select all that apply.

• Calcium

• Nitrogen

• Beryllium

• Lithium

How many elements are in period 3?

• 6

• 7

• 8

• 18

Which element has 5 valence electrons?

• Phosphorus (P)

• Vanadium (V)

• Boron (B)

• Potassium (K)

What is the atomic number of the element in group 16, period 2?

• 6

• 8

• 16

• 24

Which element has 8 TOTAL electrons?

• Oxygen (O)

• Neon (N)

• Sulfur (S)

• Iron (Fe)

Reorder the following by INCREASING number of valence electrons. (LEAST -> GREATEST)

• Carbon (C)

• Phosphorus (P)

• Calcium (Ca)

• Helium (He)

• Bromine (Br)

Match the following elements to their correct common charge.

• +3

• Boron (B)

• 0

• Neon (Ne)

• -1

• Lithium (Li)

• +1

• Nitrogen (N)

• -3

• Fluorine

Which element has two energy levels?

• Helium (He)

• Magnesium (Mg)

• Oxygen (O)

• Sulfur (S)

A stable atom will have how many valence electrons?

• 6

• 8

• 10

• 18

This number determines the type of element.

• Atomic number

• Mass number

• Valence number

• Oxidation number