What happens to the charge of the atom if one electron is removed

if it loses an electron, it becomes positively charged

Explanation:

If electrons are removed from an atom, then it has more positive charges than negative ones, and the atom has an overall positive charge. Positive ions are called cations. The sharing or exchanging of electrons is what forms bonds between atoms.

frequency, z, and the collision density, z, in carbon dioxide (co2), r 180 pm at 30 °c and 120 kpa

answer:

technetium is the most reactive. this is followed by silver. the least reactive out of these three elements is strontium.