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Chemistry Examples

O

$O$

Step 1

Find the element

O

$O$ on the periodic table.

8	Atomic Number
O	Element Symbol
Oxygen	Element Name
16	Average Atomic Mass

Step 2

Find the atomic number which is located above the element's symbol. This number is equal to the number of protons and the number of electrons in the atom.

8

$8$

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

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