Flashcard Atomic Structure

Front

What are the three main subatomic particles of an atom?

Back

Protons, Neutrons, Electrons.

Front

What is the charge of a proton?

Back

Positive.

Front

What is the charge of a neutron?

Back

Neutral.

Front

What is the charge of an electron?

Back

Negative.

Front

What is the mass comparison between protons, neutrons, and electrons?

Back

Protons and neutrons have approximately the same mass, while electrons are much lighter.

Front

What is an isotope?

Back

Atoms of the same element that have different numbers of neutrons.

Front

How does the atomic number relate to an element?

Back

It is the number of protons in the nucleus of an atom and is unique to each element.

Front

What is the significance of isotopes in chemistry?

Back

They show that atoms of the same element can have different masses.

Front

What does the weighted average atomic mass of an element represent?

Back

It accounts for the relative abundance of each isotope of the element.

Front

How does the presence of isotopes affect the atomic mass?

Back

It makes the atomic mass more accurate.