How to remember the atomic mass, no of protons, neutrons and valencies of elements ?

Asked by  | 11th Oct, 2012, 07:03: PM

Expert Answer:

Atomic mass =no of protons +number of neutrons

Atomic number = no of protons

Valency= charge on an ion 

Answered by  | 12th Oct, 2012, 03:23: PM

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