What is the energy of an electron in the 2s orbital of a hydrogen atom?

-3.4 eV ()

Explanation:

In a hydrogen atom, the energy of an electron is given by:

where

n is the principal quantum number

For an electron in the 2s orbital,

n = 2

So substituting this value into the formula, we find

And converting this into Joules, we have

car stops. he keeps going = he has inertia

hello there!

your answer is a “generator”

a generator does not create energy but instead it transforms it.

it’s basically a motor working in reverse.