Question

Explain the following terms (a) Atomic number (b) mass number​

Answer 1

Answer:

a) atomic no. - number of protons in an element

b) mass no. - total number of protons and neutrons in an atom

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Answer 2

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here is your answer :-

atomic number :-

atomic number of an element may be defined as the total number of electron and protons present in an atom. in otherwards the number of units positive charges on the nucleus of an atom of the elements is called atomic number of the element. general it is donated by Z.

it is clear that nuclei of different elements contains different number of protons. therefore no two elements have the same atomic number. atomic number determined physical identity of the element...

mass number :-

it has been already pointed out that mass number of an atom is mainly considered in the nucleus. in the nucleus their are potrons and neutrons. from this it follows that the mass of an atom is mainly due to protons and neutrons in the nucleus is termed mass number of the atom. it usually represented by the letter A

A = P + n

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