Choose the INCORRECT statement. A) Within a given sublevel, each orbital is usually occupied by a single electron before any orbital has two electrons. B) When a metallic element unites with a nonmetallic element, electrons are lost by atoms of the metal and gained by atoms of the nonmetals. C) The rare gas atoms complete the filling of the p orbitals. D) The ionization energy of Ca+ is greater than that for Ca⁺⁺. E) Ba²⁺ is smaller than Ba⁺.

Question

Quizplus · Accepted Answer

The ionization energy of a cation (such as Ca+) is always smaller than that of the corresponding neutral atom (such as Ca), since the cation has already lost one or more electrons and its remaining electrons experience a greater attraction to the positively charged nucleus. Therefore, D is the incorrect statement as it implies the opposite.

Choose the INCORRECT Statement