Hydrogen Bonding and Properties

The video tutorial explains how to determine if H2 (hydrogen gas) is polar or nonpolar. It begins by examining the Lewis structure, showing that hydrogen atoms share a pair of electrons. Since both hydrogen atoms have the same electronegativity, they pull equally on the shared electrons, resulting in no net dipole. Consequently, H2 is nonpolar. The video concludes with a summary of these findings.

What is the main reason hydrogen atoms share electrons in H2?

• To achieve a full outer shell

• To increase their mass

• To change their state of matter

• To become positively charged

How many valence electrons does a single hydrogen atom have?

• Two

• One

• Three

• Four

What does it mean when two atoms have the same electronegativity?

• They will form ionic bonds

• They will share electrons equally

• They will share electrons unequally

• They will repel each other

Why is there no net dipole in an H2 molecule?

• Because the atoms have the same electronegativity

• Because the atoms have different electronegativities

• Because the electrons are not shared

• Because the atoms are different

What is the polarity of H2?

• Polar

• Nonpolar

• Ionic

• Metallic

What happens to the charge distribution in a nonpolar molecule like H2?

• It becomes uneven

• It remains uniform

• It becomes positively charged

• It becomes negatively charged