Chemistry Examples

Find the Number of Protons Cs
Step 1
Find the element on the periodic table.
55Atomic Number
CsElement Symbol
CesiumElement Name
132.905Average Atomic Mass
Step 2
To find the number of protons in , first locate the element on the periodic table. Next, find the atomic number which is located above the element's symbol. Since 's atomic number is , has protons.
protons