Question

explain about atomic number and mass number​

Answer 1

Answer:

Atomic no. :-

The number of Proton are present in the nucleus of an atom. It's symbol is z.

Mass no:-

The sum of Proton and neutron in an atom. It's symbol is A.

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Answer 2

Mass number = number of protons + number of neutrons

• The number of protons determines an element's atomic number and is used to distinguish one element from another.
• Together, the number of protons and the number of neutrons determine an element's mass number.

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