Valence Electrons in CF3Cl

The video tutorial explains how to draw the Lewis structure for CF3Cl. It begins by counting the valence electrons for each atom: carbon has four, each fluorine has seven, and chlorine has seven. The total is 32 valence electrons. The least electronegative element, carbon, is placed at the center, with fluorines and chlorine on the outside. Pairs of electrons are placed between atoms to form bonds. The remaining electrons are distributed to ensure each atom has an octet. The tutorial concludes with the completed Lewis structure for CF3Cl.

How many valence electrons does carbon contribute to the CF3Cl molecule?

• 21

• 4

• 7

• 32

What is the total number of valence electrons in CF3Cl?

• 28

• 30

• 32

• 34

Which atom is placed at the center of the CF3Cl Lewis structure?

• Carbon

• Hydrogen

• Chlorine

• Fluorine

What is the primary reason for placing carbon at the center of the CF3Cl structure?

• It is the most electronegative

• It has the highest atomic number

• It is the least electronegative

• It has the most valence electrons

How many pairs of electrons are initially placed between the atoms to form bonds in CF3Cl?

• 8

• 2

• 4

• 6

What is the significance of ensuring each atom has an octet in the Lewis structure?

• It maximizes the number of bonds

• It stabilizes the molecule

• It increases the molecular weight

• It reduces the number of electrons

How many valence electrons does each fluorine atom have in the completed Lewis structure of CF3Cl?

• 8

• 7

• 6

• 9