Rankers Physics

Atomic Structure: Practice Problem & Solution

The ratio of kinetic energy to the total energy of an electron in a Bohr orbit of the hydrogen atom, is (2018)
$2 : -1$
$1 : -1$
$1 : 1$
$1 : -2$

Solution Explained:

To solve this problem, we apply the core principles of Atomic Structure. Understanding the underlying formula is key to arriving at the correct answer below:

The relationship between kinetic energy $K$, potential energy $U$, and total energy $E$ for an electron in a Bohr orbit is $K = -E$ and $U = 2E$. Therefore, the ratio of kinetic energy to total energy is $1 : -1$.

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