Final answer:
The false statement is when oxygen transfers two electrons to calcium in their bond, option D. The correct statement is that metals transfer electrons to nonmetals in a bond, option B.
Step-by-step explanation:
The FALSE statement is D) When Ca and O bond, O transfers two electrons to Ca. In an ionic bond, metals tend to lose electrons and nonmetals tend to gain electrons. In option D, it states that oxygen (a nonmetal) transfers two electrons to calcium (a metal), which is incorrect.
When calcium and oxygen bond, calcium loses two electrons to form a Ca2+ cation, while oxygen gains two electrons to form an O2- anion. The correct statement is option B, which states that when metals and nonmetals bond, the metals transfer electrons to the nonmetals.