Question

what is the number of valence electrons in cadmium (cd)?
○ 1
○ 2
○ 10
○ 12

Explanation:

Step1: Recall cadmium's position

Cadmium (Cd) is in group 12 of the periodic table.

Step2: Determine valence electrons

Elements in group 12 have 2 valence electrons (the electrons in the outermost shell involved in bonding). So cadmium has 2 valence electrons.

Answer:

2