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Question

How many electrons, protons and neutrons are there in a nucleus of atomic number $$11$$ and mass number $$24$$?
(i) number of electron $$=$$ ________.
(ii) number of protons $$=$$ ________.
(iii) number of neutrons $$=$$ _______.


Solution

no. of electrons = atomic number $$=1$$
no. of proton = atomic number $$=11$$
no. of neutrons $$=Z-A=24-11=13$$

Physics

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