CP Chem Exam Review Part 3

Front

What are horizontal rows of elements in the periodic table called?

Back

Periods

Front

Which subatomic particles are primarily involved in chemical bonding?

Back

Electrons

Front

What does the period number of an element indicate?

Back

The number of electron shells an atom has.

Front

How many protons are present in an oxygen atom?

Back

8

Front

What does the atomic number of an element represent?

Back

The number of protons in the nucleus.

Front

What are vertical columns in the periodic table known as?

Back

Groups

Front

What is the charge of a proton?

Back

Positive

Front

What is the charge of an electron?

Back

Negative

Front

What is the mass of a neutron compared to a proton?

Back

Approximately equal.

Front

What is the significance of valence electrons?

Back

They determine an atom's chemical properties and bonding behavior.