Science 9 Unit 6: Chemical Bonding Review

Front

How many valence electrons does aluminum have?

Back

3

Front

How many valence electrons does oxygen have?

Back

6

Front

What type of compound is CO₂?

Back

Covalent

Front

How many valence electrons does magnesium have?

Back

2

Front

What type of compound is CaF₂?

Back

Ionic

Front

Define valence electrons.

Back

Valence electrons are the electrons in the outermost shell of an atom that are involved in forming bonds.

Front

What is a covalent bond?

Back

A covalent bond is a chemical bond formed by the sharing of electron pairs between atoms.

Front

What is an ionic bond?

Back

An ionic bond is a chemical bond formed through the transfer of electrons from one atom to another, resulting in the formation of charged ions.

Front

What is the octet rule?

Back

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

Front

What is the difference between ionic and covalent compounds?

Back

Ionic compounds are formed from the electrostatic attraction between oppositely charged ions, while covalent compounds are formed by the sharing of electrons.