The radius of a certain orbit of a hydrogen-like ion is measured to be

CHEMISTRY · Single correct · CBSE · Chemistry · Structure of Atom · Structure of Atom

Problem

0.2116\,\text{Å}

. If the electron is known to be in the

n=2

state, determine the atomic number

Z

of the ion. (a)

9

(b)

11

(c)

10

(d)

8