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Chemistry Examples

C l

$C l$

Step 1

Find the element

Cl

$Cl$ on the periodic table.

17	Atomic Number
Cl	Element Symbol
Chlorine	Element Name
35.45	Average Atomic Mass

Step 2

To find the number of protons in

chlorine

$chlorine$ , first locate the element on the periodic table. Next, find the atomic number which is located above the element's symbol. Since

chlorine

$chlorine$ 's atomic number is

17

$17$ ,

Cl

$Cl$ has

17

$17$ protons.

17

$17$ protons

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⎡ ⎢ ⎣ \begin{matrix} x^{2} & \frac{1}{2} \sqrt{π} & \int x d x \end{matrix} ⎤ ⎥ ⎦

$[\begin{array}{c} x^{2} & \frac{1}{2} \\ \sqrt{π} & \int x d x \end{array}]$