End of module 3 Review Packet

Front

What are the basic components of an atom?

Back

Protons, neutrons, and electrons.

Front

What is an isotope?

Back

Isotopes are variants of a particular chemical element that have the same number of protons but different numbers of neutrons.

Front

How do you calculate the average atomic mass of an element?

Back

Multiply the mass of each isotope by its relative abundance (as a decimal), then sum these values.

Front

What is the mass number of an atom?

Back

The mass number is the total number of protons and neutrons in an atom's nucleus.

Front

What is the charge of a neutron?

Back

Neutrons have no charge.

Front

What is the symbol for Magnesium?

Back

Mg.

Front

How many protons are in a Magnesium atom?

Back

Magnesium has 12 protons.

Front

What is the significance of the atomic number?

Back

The atomic number indicates the number of protons in an atom and determines the element's identity.

Front

What is the relationship between protons and electrons in a neutral atom?

Back

In a neutral atom, the number of protons equals the number of electrons.

Front

What is the average atomic mass of an element?

Back

The weighted average of the masses of an element's isotopes.