How many electrons does the Ca²⁺ ion possess? A) 27 B) 18 C) 9 D) 3 E) 20

Question

Quizplus · Accepted Answer

Ca²⁺ ion can be broken down as follows: - Ca2+ ion: 20 electrons (Calcium atom has 20 electrons, but it loses 2 electrons to form the Ca2+ ion) - S2- ion: 18 electrons (Sulfur atom has 16 electrons, but it gains 2 electrons to form the S2- ion) - U1+ ion: 1 electron (Uranium atom has 92 electrons, but it loses 91 electrons to form the U1+ ion) - P12+ ion: 12 electrons (Phosphorus atom has 15 electrons, but it loses 12 electrons to form the P12+ ion) - S1- ion: 1 electron (Sulfur atom has 16 electrons, but it gains 1 electron to form the S1- ion) - P0 ion: 0 electrons (Phosphorus atom has 15 electrons, but it loses/gains 0 electrons to form the P0 ion) So, total number of electrons in the ion = 20 + 18 + 1 + 12 + 1 + 0 = 52 But, the ion has a +1 charge, which means it has one electron less than the total number of protons. Therefore, the number of electrons in the ion = 52 - 1 = 51. The closest answer is B (18).

How Many Electrons Does the Ca2+ Ion Possess

How Many Electrons Does the Ca²⁺ Ion Possess