Lewis Structure and Valence Electrons

Dr. B explains how to draw the Lewis structure for hydrofluoric acid (HF). The video covers the valence electrons of hydrogen and fluorine, totaling eight, and demonstrates how to bond them to satisfy the octet rule. The structural formula is also discussed, showing the single bond between hydrogen and fluorine. The video concludes with a brief thank you.

What is the group number of Hydrogen in the periodic table, and how many valence electrons does it have?

• Group 2, 2 valence electrons

• Group 1, 1 valence electron

• Group 17, 7 valence electrons

• Group 7, 7 valence electrons

How many total valence electrons are available for the Lewis structure of HF?

• 8

• 6

• 7

• 9

What is the purpose of bonding Hydrogen and Fluorine in the Lewis structure of HF?

• To create a triple bond

• To fill the outer shell of Hydrogen

• To fill the outer shell of Fluorine

• To create a double bond

How many valence electrons are used in the Lewis structure of HF?

• 6

• 8

• 12

• 10

In the structural formula of HF, how is the bond between Hydrogen and Fluorine represented?

• With a single line

• With a triple line

• With a double line

• With no line