Question

Name two elements that have two electrons in their outermost shell.

A. Oxygen and Fluorine
B. Sodium and Magnesium
C. Chlorine and Argon
D. Potassium and Calcium

Answer 1

Oxygen and Fluorine are the two elements that have two electrons in their outermost shell.

Step-by-step explanation:

The two elements that have two electrons in their outermost shell are Oxygen and Fluorine. Oxygen is a Group 6A element and has six valence electrons, while Fluorine, a halogen from Group 7A, also has seven valence electrons.