Understanding Ions and Ionic Bonds

A molecule with a neutral charge

An atom or molecule with a net electric charge due to the loss or gain of one or more electrons

A type of chemical bond

A molecule with a positive charge only

The bond between two hydrogen atoms in a hydrogen molecule

The bond between sodium (Na) and chlorine (Cl) in sodium chloride (NaCl)

The bond between carbon atoms in a diamond

The bond between oxygen atoms in an oxygen molecule

Electrons are shared equally between atoms

Electrons are transferred from one atom to another

Electrons are shared unequally between atoms

Electrons are not involved in ionic bonds

Cl $$^-$$

Na $$^+$$

O $$^{2-}$$

S $$^{2-}$$

+2

-2

+1

-1

They have low melting and boiling points

They conduct electricity when dissolved in water

They are usually gases at room temperature

They are formed by sharing electrons

MgCl

MgCl $$_2$$

Mg $$_2$$ Cl

Mg $$_2$$ Cl $$_3$$

An ion with a negative charge

An ion with a positive charge

A neutral atom

An ion with no charge

To achieve a full outer electron shell

To increase their mass

To become radioactive

To decrease their size

They are malleable

They are good conductors of electricity in solid form

They are brittle

They have a metallic luster