how many valence electrons are in a molecule of the following compound?\nsif₂\n14\n18\n10\n16\n32\n24

Explanation:

Step1: Determine valence electrons of Si

Silicon (Si) is in Group 14 of the periodic table, so it has 4 valence electrons.

Step2: Determine valence electrons of F

Fluorine (F) is in Group 17 of the periodic table, and each F atom has 7 valence electrons. There are 2 F atoms in (SiF_{2}).

Step3: Calculate total valence electrons

The total number of valence electrons in (SiF_{2}) is the sum of the valence electrons of Si and 2 F atoms. So, (4 + 2\times7=4 + 14 = 18).

Answer:

18