Ionic & Covalent Bonding

An ionic bond is a type of chemical bond formed through the electrostatic attraction between oppositely charged ions, typically between a metal and a nonmetal.

A covalent bond is a type of chemical bond where two atoms share one or more pairs of electrons, usually between nonmetals.

The sulfate ion (SO4) has a charge of -2.

The formula is NaCl.

Ionic compounds are formed from the transfer of electrons and consist of ions, while covalent compounds are formed from the sharing of electrons between atoms.

The charge of aluminum (Al) in Al2O3 is +3.

A polyatomic ion is a charged ion composed of two or more atoms bonded together, such as sulfate (SO4) or phosphate (PO4).

The octet rule states that atoms tend to gain, lose, or share electrons to achieve a full outer shell of eight electrons.

A double bond is a type of covalent bond where two pairs of electrons are shared between two atoms.

H2O (water) is an example of a covalent compound.