if an atom has two additional valence electrons than the original element has, what would be the charge of the atom

2-

Each electron has a 1- charge, so two additional electrons would add a 2- charge to the previously neutral atom.

Sun is explosive itself spread 9 planets.earth is 3rd explosive in the solar system about 500 hundred million years ago . first earth became ice age and freezing climate.centre of earth magma. north zone is artic . south is anatric