Question

Which of the following elements has two valence electrons?

a. Sr
b. Na
c. Al
d. B

Answer 1

The Correct answer is (A) Sr element.

The explanation:

by looking at the periodic table and look at Group 2 which has elements with two valences we can see the Sr element

and its outer shell has 2 valence electrons.

so, Sr is the element that has two valence electrons.

Answer 2

The element A. Sr, or strontium, has two valence electrons. You can find this information by locating it on the Table of Elements, where it is in Group 2.