The simple Bohr model is not applicable to He 4 atom because ______. a. He4 is an inert gas. b. He4 has neutrons in the nucleus. c. He4 has one more electron. d. electrons are not subject to central forces.

Question

KollegeApply · Accepted Answer

c and d Explanation: Bohr proposed a model for the hydrogen atoms which is also applicable for some lighter atoms in which a single electron revolves around a stationary nucleus of positive charge Ze (called hydrogen-like atom). It is valid only for one-electron atoms, e.g. : H, He+, Li+2, Na+1 etc. The Bohr model is not applicable to He4, as it has one more electron and electrons are not subject to central forces.

AChoose Your Answer