question_answer

Calcium and chlorine form \[CaC{{l}_{2}}\] rather than CaCl because

A)  Less energy is required to remove one electron from the calcium atom than to remove two electrons.

B)  More energy is released in forming chloride ions from chlorine molecules in the foci-nation of \[CaC{{l}_{2}}\left( s \right)\]than in the formation of CaCl(s).

C)  The lattice energy of CaCl(s) is less exothermic than that of \[CaC{{l}_{2}}\left( s \right)\].

D)  When CaCI(s) is formed from its elements, more energy is released than when \[CaC{{l}_{2}}\left( s \right)\] is formed from its elements.