Question

how many valence electrons are in the sulfur hexafluoride molecule sf₆?

Explanation:

Step1: Find valence electrons of S

Sulfur (S) is in group 16, so it has 6 valence electrons.

Step2: Find valence electrons of F

Fluorine (F) is in group 17, so each F atom has 7 valence electrons.

Step3: Calculate total valence electrons in SF₆

There is 1 S atom and 6 F atoms in SF₆. Total = 6 (from S)+6×7 (from 6 F atoms)=6 + 42 = 48.

Answer:

48