Topic 5: Atomic Structure

Front

What are atoms of the same element with a different number of electrons called?

Back

Ions are atoms of the same element that have gained or lost electrons, resulting in a charge.

Front

What is the atomic mass of Aluminum (Al)?

Back

The atomic mass of Aluminum (Al) is 26.982.

Front

Which of the following is not a particle found in an atom: electron, proton, neutron, or micron?

Back

Micron is not a particle found in an atom.

Front

What determines which kind of element an atom is?

Back

The number of protons in the nucleus of an atom determines the kind of element.

Front

What is the atomic mass of an atom equal to?

Back

The atomic mass of an atom is equal to the number of protons plus the number of neutrons.

Front

What are the three main subatomic particles in an atom?

Back

The three main subatomic particles are protons, neutrons, and electrons.

Front

What charge do protons carry?

Back

Protons carry a positive charge.

Front

What charge do electrons carry?

Back

Electrons carry a negative charge.

Front

What is the charge of neutrons?

Back

Neutrons have no charge; they are neutral.

Front

How do isotopes of an element differ from each other?

Back

Isotopes of an element differ in the number of neutrons they contain.