The Bohr radius for the ground state of hydrogen is

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

Problem

a_{0}=5.29\times10^{-11}\,\text{m}

. Determine the radius of the

n=2

orbit in singly-ionized helium (

\text{He}^{+}

). (a)

2.1\times10^{-10}\,\text{m}

(b)

1.1\times10^{-10}\,\text{m}

(c)

5.3\times10^{-11}\,\text{m}

(d)

2.6\times10^{-11}\,\text{m}