Question

Number of Protons and Electron in an atom are same. Then why is it wrong to say that the atomic number of an element is equal to the number of electrons present?

Answer 1

Yes, that's right.In an atom the no. of electrons and the no. of protons is the same.But this rule applies just for a neutral atom.If you think of an ion in which the no. of electrons may be less or more than the normal no. of electrons , there you cannot say that the atomic no. is equal to the no. of electrons at all times.Therefore ,atomic no. is defined as the no. of protons.You can also define atomic no. as the no. of electrons only in a neutral atom.
Hope you understood it...

Answer 2

yes its true that no. of protons and no.of electrons r same in an atom, but that's only for a normal/neutral atom. If u see in a ion, it will differ. We need a stable atomic no. and if we choose electrons for this, then we'll not get a stable no. So, that's y no.of protons r chosen for atomic no.

I hope this will help u : )
plz mark it as brainliest