Shapes flashcard

Front

What is a molecular shape?

Back

The three-dimensional arrangement of atoms in a molecule.

Front

What is the shape of a molecule with 2 bonds and 2 lone pairs?

Back

Bent.

Front

What is the molecular geometry of H2S?

Back

Bent.

Front

What is the molecular structure of carbon dioxide (CO2)?

Back

Linear.

Front

Which molecule has a tetrahedral shape?

Back

CH4 (methane).

Front

What is the bond angle in a tetrahedral molecular shape?

Back

Approximately 109.5 degrees.

Front

What is the difference between a lone pair and a bonding pair of electrons?

Back

A lone pair is a pair of valence electrons that are not shared with another atom, while a bonding pair is shared between atoms.

Front

What is the VSEPR theory?

Back

Valence Shell Electron Pair Repulsion theory; it predicts the shape of molecules based on the repulsion between electron pairs.

Front

What is a trigonal pyramidal shape?

Back

A molecular shape with one central atom bonded to three other atoms and one lone pair, resulting in a pyramid-like structure.

Front

What is the molecular geometry of ammonia (NH3)?

Back

Trigonal pyramidal.