How does an atom change if all of its electrons are removed?

Atom will have no change in mass as mass of electrons are negligible as compare to mass of protons

As we know that

So there is negligible or no change in the mass if an atom loses all its electrons

As we find the charge of an atom we know that

here we know that

= number of electrons

= number of protons

so as the atom loses all its electrons then the atom will become positively charged as all its negative charge electrons is removed from it