question_answer

Electrons in the atom are held to the nucleus by        

A)  Coulomb's forces

B)  nuclear forces

C)  van der Waals' forces

D)  gravitational forces

Correct Answer: A

Solution :

The positively charged nucleus, has electrons revolving around it in stationary orbits. The Coulomb's force provides the necessary centripetal force of attraction to keep the electrons is orbits.