Question

part 1 (0.3 point)
strontium
valence electron(s)

part 2 (0.3 point)
aluminum
valence electron(s)

part 3 (0.3 point)
polonium
valence electron(s)

Explanation:

Step1: Find Strontium's group

Strontium is in Group 2 of the periodic table.

Step2: Determine valence electrons for Sr

Group 2 elements have 2 valence electrons.

Step3: Find Aluminum's group

Aluminum is in Group 13 of the periodic table.

Step4: Determine valence electrons for Al

Group 13 elements have 3 valence electrons.

Step5: Find Polonium's group

Polonium is in Group 16 of the periodic table.

Step6: Determine valence electrons for Po

Group 16 elements have 6 valence electrons.

Answer:

2
3
6