Unit 4 Chemical Bonding

Front

How many valence electrons does oxygen have?

Back

Oxygen has 6 valence electrons.

Front

What is a charged particle that has lost or gained an electron to achieve a filled outer energy level?

Back

It is called an ion.

Front

What type of chemical bonding results from the transfer of electrons?

Back

Ionic bonding.

Front

What type of ion does lithium most likely form?

Back

Lithium would most likely form a positive ion.

Front

What is the sum of the oxidation numbers in a compound?

Back

The sum is always zero.

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 8 electrons.

Front

Define ionic bond.

Back

An ionic bond is a type of chemical bond formed through the electrostatic attraction between oppositely charged ions.

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.

Front

What is the difference between a positive ion and a negative ion?

Back

A positive ion (cation) has lost electrons, while a negative ion (anion) has gained electrons.

Front

What is the significance of valence electrons in chemical bonding?

Back

Valence electrons determine how an atom can bond with others and its chemical properties.