Question

when electrons are removed from the outermost shell of a calcium atom, the atom becomes an anion that has a larger radius than the atom. an anion that has a smaller radius than the atom. a cation that has a larger radius than the atom. a cation that has a smaller radius than the atom.

Explanation:

When electrons are removed from an atom, it forms a cation. For calcium, losing electrons from the outermost shell reduces electron - electron repulsion and the remaining electrons are pulled closer to the nucleus, resulting in a smaller radius compared to the neutral atom.

Answer:

D. a cation that has a smaller radius than the atom.