Atomic Symbol

 

Atomic Symbol

Atom of an element is represented in the form of an atomic symbol.

Element	Atomic symbol
Hydrogen	H
Helium	He
Lithium	Li
Beryllium	Be
Boron	B

Atomic Number (z)

The number of protons present in the nucleus of an atom is equal to its atomic number (Z).

Thus Atomic number (Z) = number of protons in the nucleus of an atom

Example Atomic number of Carbon(C) = 6 = number of protons

Atomic Mass (A)

Atomic mass is equal to the sum of protons and neutrons present in the nucleus of the atom.

Thus Atomic mass = number of protons + number of neutrons

For Example Atomic mass of carbon = 12