Chemistry Unit 4 Exam Study Guide

Front

What is the stability of atoms when they are bonded together?

Back

Atoms are more stable when they are bonded together.

Front

What type of ion does an atom become when it loses a valence electron?

Back

A positive ion.

Front

What type of intermolecular forces are present in water (H2O)?

Back

Hydrogen bonding.

Front

What is the biggest factor responsible for the properties of a nonpolar compound with the formula C30H62?

Back

London dispersion forces.

Front

What is the nature of a diatomic molecule like O2 in terms of polarity?

Back

Nonpolar; electrons are shared equally.

Front

Define ionic bond.

Back

A chemical bond formed between two ions with opposite charges.

Front

What is a covalent bond?

Back

A chemical bond formed by the sharing of electrons between atoms.

Front

What are valence electrons?

Back

Electrons in the outermost shell of an atom that are involved in chemical bonding.

Front

What is the octet rule?

Back

Atoms tend to gain, lose, or share electrons to achieve a full outer shell of eight electrons.

Front

What is a polar molecule?

Back

A molecule with a net dipole moment due to the presence of polar bonds.