Unit 3 Test Review - PT & Bonding 2024

Front

What is the subatomic particle with a negative charge?

Back

Electron

Front

What happens to an atom when it gains electrons?

Back

It becomes negatively charged.

Front

If an atom has 3 valence electrons, what is more likely to happen to achieve a full shell?

Back

It is more likely to lose 3 electrons.

Front

What charge does a sodium atom acquire when it loses an electron?

Back

It becomes positively charged.

Front

How many valence electrons does oxygen have?

Back

6

Front

What is a valence electron?

Back

A valence electron is an electron in the outermost shell of an atom that can participate in chemical bonding.

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

What is an ion?

Back

An ion is an atom or molecule that has a net electrical charge due to the loss or gain of one or more electrons.

Front

What is the difference between cations and anions?

Back

Cations are positively charged ions (lost electrons), while anions are negatively charged ions (gained electrons).

Front

What is the role of electrons in chemical bonding?

Back

Electrons, particularly valence electrons, are involved in forming bonds between atoms to create molecules.