Question

calculate the number of proton ,neutron, and eletron of sodium atom give that atomic number of sodium is 11 and masses number is 23

Answer 1

no of electrons =11
no of protons=11
no of neutrons =12

Answer 2

The atomic number of an element is its number of electrons and protons.In this case,atomic number is 11.so obviously the number of protons and electrons are also 11.
To find the number of neutrons we must subtract the mass number with atomic number of an element.In this case,23 - 11= 12.number of neutrons is 12.