Which of the Following is True of Na⁺

Question

Which of the following is true of Na⁺? A) It is an anion. B) It is an electrolyte. C) It bonds ionically with Ca²⁺. D) It is a cation.

Accepted Answer

Na⁺ has one fewer electron than the neutral atom sodium (Na), resulting in a positive charge and making it a cation. Option A is incorrect as anions have a negative charge. Option B is true as Na⁺, being a charged ion, can conduct electrical current in solution. Option C is false as the formula given for calcium sulfide (CaS) does not match the correct formula for calcium phosphate, which is Ca3(PO4)2.