Question

# Using Bohr’s theory in a one-electron atom. Choose the correct option(s). (n→ principal quantum number, z is number of protons in the nucleus).

A

Total energy of electron increases with n.

B

Total energy and potential energy of electrons is negative in all orbits.

C

Magnitude of angular momentum of electron increases with n.

D

Linear momentum of electron decreases with z for same n.

Solution

## The correct options are A Total energy of electron increases with n. B Total energy and potential energy of electrons is negative in all orbits. C Magnitude of angular momentum of electron increases with n. D Linear momentum of electron decreases with z for same n. T=−13.6z2n2 T=Total energy U=2T U =Potential energy K=-T L=Kinetic energy As n increase T increases, T and U is negative for all n L=mvr=nh2π As n increases L increases. As n increase K decreases hence momentum decreases. Physics

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