FLASHCARD: WS 4-5 Molecular Geometry and Polarity 2024

Front

What is the electron dot diagram for neon (Ne)?

Back

Neon has a complete outer shell with 8 electrons, represented as: ••Ne••.

Front

What is a polar covalent bond?

Back

A bond where electrons are shared unequally between two atoms, resulting in a partial positive charge on one atom and a partial negative charge on the other.

Front

Which formula represents a nonpolar molecule?

Back

CBr₄ is a nonpolar molecule because it has a symmetrical shape that allows the dipoles to cancel out.

Front

What does an electronegativity difference indicate about a bond?

Back

A larger electronegativity difference indicates a more polar bond, while a difference of 0 indicates a nonpolar bond.

Front

What is the electronegativity of hydrogen (H) and oxygen (O)?

Back

Hydrogen (H) = 2.1, Oxygen (O) = 3.5.

Front

What type of bond is formed when the electronegativity difference is 0?

Back

A nonpolar covalent bond.

Front

Which bond is most polar: H-F, H-Cl, H-Br, H-I?

Back

H-F is the most polar bond due to the highest electronegativity difference.

Front

What is the shape of a nonpolar molecule like CBr₄?

Back

CBr₄ has a tetrahedral shape, which is symmetrical.

Front

What is the significance of molecular geometry in determining polarity?

Back

Molecular geometry affects the distribution of charge, which determines if a molecule is polar or nonpolar.

Front

How do you determine if a molecule is polar or nonpolar?

Back

Check the symmetry of the molecule and the electronegativity differences between atoms.