# How many protons, neutrons, and electrons does a neutral hydrogen atom have?

Jan 7, 2018

See below.

#### Explanation:

A hydrogen atom has an atomic number of $1$.

So it's proton number will always be $1$.

A neutral hydrogen atom does not have any charge.

So it has the same amount of electrons as protons, which turns out to be also $1$.

A neutral hydrogen atom has an atomic mass of $\approx 1.00794 \text{amu" ~~ 1 "amu}$.

To find the amount of neutrons, we take the proton number and subtract it from the mass number.

$1 - 1 = 0$

So a neutral hydrogen atom has no neutrons.

In summary,

A hydrogen atom has

$1$ proton
$1$ electron
$0$ neutrons

I hope that helps!