Atomic Number

 

• What is Atomic Number

It is “defined as the number of protons in the nucleus is called atomic number”. Some examples are given in the table below. It is represented by Z.

Elements	No of protons	Atomic number (Z)
Oxygen	8	8
Hydrogen	1	1
Sodium	11	11

• How Atomic Number is Represented

It is represented by Z.

• What Atomic Number Represent

The atomic number represents the number of protons in an atom.

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