Chemistry Examples

$H e$

Step 1

Find the element $He$ on the periodic table.

2	Atomic Number
He	Element Symbol
Helium	Element Name
4	Average Atomic Mass

Step 2

To find the number of electrons in $helium$ , first locate the element on the periodic table. Next, find the atomic number which is located above the element's symbol. Since $helium$ 's atomic number is $2$ , $He$ has $2$ electrons.

$2$ electrons

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