Question

Calculate the no. Of Electrons, Protons & Neutrons in Cl - atom if the atomic no. And mass no. Of chlorine are 17 & 35 respectively.

Answer 1

Dear Student,

$$\begin{gathered} \mathrm{For}\mathrm{Cl} \\ \mathrm{Number}\mathrm{of}\mathrm{electrons}=\hspace{0.17em}\mathrm{Atomic}\mathrm{number}=17 \\ \mathrm{Number}\mathrm{of}\mathrm{protons}=\mathrm{Number}\mathrm{of}\mathrm{electrons}=17 \\ \mathrm{Number}\mathrm{of}\mathrm{Neutrons}=\mathrm{Mass}\mathrm{number}-\mathrm{Number}\mathrm{of}\mathrm{protons} \\ =35-17 \\ =18 \end{gathered}$$