Question

an atom with a net positive charged must have more what?

Answer 1

Heres a better answer so you understand it more on why this is the answer...

Any atom will have a net positive charge if it loses electrons (the negative particles in the atom). The reason is the atom now has more protons (positive charges) than electrons (negative charges) so it becomes a positive ion. Although, through various processes, many different atoms can be stripped of one or more electrons and thus take on a positive charge, the elements on the left side of the periodic table, in the first two columns, are the ones that tend to give up electrons during chemical reactions so they are positive ions; also called cations in ionic bonding.