Atomic mass of an element is 1. This element has _______ present in the nucleus of its atom.

one proton and one neutron

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one proton

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one electron and one neutron

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one neutron

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Solution

The correct option is B
one proton

Atomic number (Z) = Number of protons = Number of electrons

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An element has atomic number 29 and mass number 62. The number of the neutrons in its nucleus is -

2, 8, 18, 1

63

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