Chemistry Midterm Flashcard

Front

What does VSEPR stand for?

Back

Valence Shell Electron Pair Repulsion.

Front

What is the bond angle of a linear molecule according to VSEPR theory?

Back

180°.

Front

Which molecule is nonpolar: SO₂, BF₃, NH₃, or H₂O?

Back

BF₃.

Front

What is the number of electrons around the central atom in XeF₄?

Back

12.

Front

How many lithium atoms are needed to balance sulfur in a neutral salt?

Back

2.

Front

What is a radical in chemistry?

Back

A species with an unpaired electron.

Front

What is the octet rule?

Back

Atoms tend to bond in such a way that they have eight electrons in their valence shell.

Front

What is an example of a molecule with an incomplete octet?

Back

BH₃.

Front

What is the molecular geometry of BF₃?

Back

Trigonal planar.

Front

What is the significance of bond angles in molecular geometry?

Back

They determine the shape of the molecule and influence its reactivity.