Secondary Catalogue

Atomic Number and Mass Number

Structure of the Atom

The atomic number of an element, represented by the letter Z, is the number of protons present in one atom of the element. The total number of protons and neutrons present in one atom of an element is called its mass number and is represented by the letter A.

Rating: E
Production Year: 2014
Duration: 4 min
Series: Structure of the Atom

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