Valency of sodium is
Neutrons in an atom also affect the
To find out number of neutrons in an atom, we need to know the
The attraction of two ions due to opposite charge is known as
To trace the path of phosphorus, the isotope of phosphorus which is added to the fertilizers, is
If the mass of protons and neutrons is 1, then the mass of electron is
The name of physicist who discovered the nucleus of atom was
Explanation
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