0

-1

+1

-2

K⁺

K^-

K₂

K⁰

The charge is determined by the number of protons in the atom.

The charge is determined by the number of neutrons in the atom.

The charge is determined by the number of electrons lost or gained compared to the neutral atom.

The charge is determined by the atomic mass of the element.

N^2-

N^3-

N^1-

N^4-

It indicates that the atom has gained one or more electrons.

It indicates that the atom has lost one or more electrons.

It indicates that the atom has an equal number of protons and electrons.

It indicates that the atom is neutral.

+1

-1

0

+2

0

-1

+1

-2

+1

-1

0

+2

F^-

F⁺

F₂

F⁰

It indicates that the atom has lost one or more electrons.

It indicates that the atom has gained one or more electrons.

It indicates that the atom has a neutral charge.

It indicates that the atom has an equal number of protons and neutrons.

Li⁺

Li^-

Li²⁺

Li³⁺

Valence refers to the ability of an atom to bond with other atoms, determined by the number of electrons in its outer shell.

Valence is the measure of an atom's mass compared to other elements.

Valence indicates the temperature at which an element can exist as a gas.

Valence is the color of an element when it is heated.

Na⁺ (sodium ion)

Ca²⁺ (calcium ion)

K⁺ (potassium ion)

Mg²⁺ (magnesium ion)

I^-

I⁺

I₂

I⁰

An ion consisting of a single atom with a positive or negative charge.

An ion made up of two or more atoms bonded together.

A charged particle that can exist in a gaseous state only.

An ion that has no charge and is neutral.