Question

if an electron is revolving around the nucleus of He+ ion at a distance of 4Angstroms the magnitude of centripetal force on electron by the nucleus is​

Answer 1

Explanation:

The charge of the nucleus is positive and the charge of the electron is negative. There exists an electrostatic force between the positive nucleus and negative electrons. This electrostatic force supplies the necessary centripetal force for revolving of electrons around the nucleus.