IPC chapter 18 review

Front

What is an ion?

Back

An ion is an atom or molecule that has a net electrical charge due to the loss or gain of one or more electrons.

Front

Which elements typically form negative ions?

Back

Nonmetals, such as chlorine (Cl), typically form negative ions by gaining electrons.

Front

What are oxidation numbers?

Back

Oxidation numbers are values assigned to atoms in a compound that indicate the number of electrons lost, gained, or shared in a chemical bond.

Front

What is a polar bond?

Back

A polar bond is a type of covalent bond where electrons are unequally shared between two atoms, resulting in a molecule with a partial positive charge on one end and a partial negative charge on the other.

Front

What are subscripts in chemical formulas?

Back

Subscripts are numbers in chemical formulas that indicate the number of atoms of each element in a molecule.

Front

What is a binary compound?

Back

A binary compound is a chemical compound that consists of exactly two different elements.

Front

What is the name of the compound formed from lithium and chlorine?

Back

The compound formed from lithium and chlorine is called lithium chloride (LiCl).

Front

What is the typical oxidation state of nonmetals?

Back

Most nonmetals have a negative oxidation state when they form compounds.

Front

What is the difference between ionic and covalent bonds?

Back

Ionic bonds involve the transfer of electrons from one atom to another, while covalent bonds involve the sharing of electrons between atoms.

Front

What is the significance of electronegativity in bond formation?

Back

Electronegativity is a measure of an atom's ability to attract and hold onto electrons; it influences whether a bond will be ionic or covalent.