2.1 Ionic vs covalent bonding

Front

What is an ionic bond?

Back

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

Front

What is a covalent bond?

Back

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

Front

How many valence electrons does an oxygen atom have?

Back

Oxygen has 6 valence electrons.

Front

What happens to a metal atom when it loses an electron?

Back

When a metal atom loses an electron, it becomes a positively charged ion (cation).

Front

What happens to a non-metal atom when it gains an electron?

Back

When a non-metal atom gains an electron, it becomes a negatively charged ion (anion).

Front

Why do atoms form ionic bonds?

Back

Atoms form ionic bonds to achieve a full outer electron shell, leading to greater stability.

Front

Why do atoms form covalent bonds?

Back

Atoms form covalent bonds to share electrons and fill their valence shells, achieving stability.

Front

What is the charge of a cation?

Back

A cation has a positive charge.

Front

What is the charge of an anion?

Back

An anion has a negative charge.

Front

Give an example of a compound formed by ionic bonding.

Back

Sodium chloride (NaCl) is an example of a compound formed by ionic bonding.