Question

$E,L,p$ and $r$ are the energy, angular momentum, linear momentum and orbital radius of an electron in a atom corresponding to the quantum number $n$ . Then $EprL$ is

• A. proportional to $n^{2}$
• B. proportional to $n$ .
• C. proportional to $1/n$
• D. independent of $n$ .

Answer 1

Answer: (D)

$E \propto \frac{1}{n^{2}}$
$r \propto n^{2}$
$p \propto \frac{1}{n}$
$L \propto n$