1.

If A = 23 and Z = 11 for Na atom, how many protons, electrons and neutrons are present in Na atom ?

Answer»

Solution :A = 23, Z = 11
No of `e^(-)` = No of PROTONS = Z
Number of electron OUTSIDE NUCLEUS = 11
Number of electron inside nucleus = 11
No of neutrons `= A-Z=23-11=12`


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