Which element requires the least amount of energy to remove the most loosely held electron from a gaseous atom in the ground state?

Which terms identify two different categories of compounds?

Which statement describes the energy and bonding changes as two atoms of fluorine become a molecule of fluorine?

Which part of a calcium atom in the ground state is represented by the dots in its Lewis electron-dot diagram?

Based on Table S, an atom of which element has the strongest attraction for electrons in a chemical bond?