Final answer:
The total number of valence electrons in SiF4 is the sum of the valence electrons from the silicon atom and the four fluorine atoms, totaling 32, which does not match any of the given options.
Step-by-step explanation:
The student asked about the total number of valence electrons in SiF4. To find out, we sum the valence electrons from each atom in the compound. Silicon (Si) is in group 14 of the periodic table and has 4 valence electrons. Each fluorine (F) atom is in group 17 and has 7 valence electrons. As there are four F atoms, we multiply 7 by 4 to get 28. Finally, we add the valence electrons from the Si and F together to get the total valence electrons:
(1 Si atom × 4 valence electrons) + (4 F atoms × 7 valence electrons each) = 4 + 28 = 32 valence electrons.
However, the options given appear to be incorrect as none match the calculated total. The correct total of valence electrons for SiF4 should be 32, which is not listed in the given options.