Question

if mass of 1 atom is 3.32×10^-23g then calculate no. of neutrons and protons present in two atoms of the element​

Answer 1

Mass of 1 atom =3.32 × 10^-23

Mass of 1 neucleon ( a proton or a electron ) = 1.6 × 10^-27

So mass no of that atom is 3.32×10^-23/1.67×10^-23 = 2 i.e it has 1 proton and 1 neutron

so no of protons in 2 atoms =2 and

No of neutrons in 2 atoms = 2 ..

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