Question

Atomic number of phosphorous ,sodium,and chlorine is 15,11 and 17. how many electrons ,protons,and neutrons are present in each of Na+,P and cl-

Answer 1

Na+
protons = 11 
neutrons = 11
electrons =10
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P
protons , electrons , neutrons =15
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cl-  
protons =17
neutrons =17
electrons = 18
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