Identify the number of valence electrons for ICl₅. A) 36 B) 40 C) 42 D) 44 E) 46

Question

Quizplus · Accepted Answer

To identify the number of valence electrons, we need to add up the valence electrons of each atom in the molecule. ICl₅: I: group 7A, has 7 valence electrons Cl: group 7A, has 7 valence electrons S: group 6A, has 6 valence electrons B: group 3A, has 3 valence electrons Total: (7 + 7) + (6 + 3 + 6 + 3 + 0) = 32 However, we have to take into account the charge of the ion as well. In this case, there is a net charge of -2 (two extra electrons). Therefore, the total number of valence electrons for ICl₅ is 32 + 2 = 34. Option C is the closest choice with 42 valence electrons.

Identify the Number of Valence Electrons for ICl5

Identify the Number of Valence Electrons for ICl₅