# Question #8da6a

Nov 24, 2017

${N}_{\text{A}}$

#### Explanation:

I'm not sure if this is what you wanted to ask, but the answer here is Avogadro's constant.

The idea is that in order to have $1$ mole of atoms of neon in a given sample, you need to have $6.022 \cdot {10}^{23}$ atoms of neon. This is known as Avogadro's constant, ${N}_{\text{A}}$, and is how a mole is defined.

Since you have

$\textcolor{b l u e}{\underline{\textcolor{b l a c k}{\text{1 mole Ne" = 6.022 * 10^(23)color(white)(.)"atoms Ne}}}}$

and

$\textcolor{b l u e}{\underline{\textcolor{b l a c k}{6.022 \cdot {10}^{23} \textcolor{w h i t e}{.} \text{atoms Ne" = N_"A" color(white)(.)"atoms Ne}}}}$

you can say that $1$ mole of neon contains ${N}_{\text{A}}$ atoms of neon.

$\text{1 mole Ne" = N_"A" color(white)(.)"atoms Ne}$

Check out this very cool video on the topic.