Valence Electrons in CHF3

The video tutorial explains how to draw the Lewis structure for CHF3. It begins by identifying the number of valence electrons for carbon, hydrogen, and fluorine, totaling 26. The tutorial then describes the placement of atoms, with carbon at the center due to its lower electronegativity compared to fluorine. Hydrogen is placed on the outside. The video continues by forming chemical bonds using valence electrons and ensuring each atom satisfies the octet rule. Finally, it confirms that all 26 valence electrons are used, completing the Lewis structure for CHF3.

How many valence electrons does carbon have in the CHF3 molecule?

• 2

• 4

• 6

• 8

Which atom is placed at the center of the CHF3 Lewis structure?

• Oxygen

• Carbon

• Hydrogen

• Fluorine

Why is carbon placed at the center of the CHF3 Lewis structure?

• It has more valence electrons than hydrogen

• It has the highest atomic number

• It is less electronegative than fluorine

• It is the most electronegative

How many valence electrons are used to form chemical bonds in CHF3?

• 8

• 10

• 12

• 14

What is the total number of valence electrons in CHF3?

• 26

• 20

• 24

• 28

How many valence electrons does each fluorine atom have in its outer shell in CHF3?

• 8

• 9

• 7

• 6

What is the state of the outer shell of hydrogen in the CHF3 Lewis structure?

• It has 1 valence electron

• It has 8 valence electrons

• It is incomplete

• It has 2 valence electrons