Question

Choose the correct answer from the choice given:
An element A belonging to Period 3 and Group II will have

विकल्प

• 3 shells and 2 valence electrons

• 2 shells and 3 valence electrons

• 3 shells and 3 valence electrons

• 2 shells and 2 valence electrons 

Answer 1

3 shells and 2 valence electrons