Structure of Atoms

Front

What does the atomic number of an atom represent?

Back

The atomic number represents the number of protons in the nucleus of an atom.

Front

Which particles are neutral and located in the nucleus of an atom?

Back

Neutrons are neutral particles located in the nucleus of an atom.

Front

What is the atomic mass?

Back

The atomic mass is the average mass of an atom of an element, taking into account the relative abundance of its isotopes.

Front

What is the smallest piece of an element that still represents that element?

Back

The smallest piece of an element that still represents that element is an atom.

Tags

NGSS.MS-PS1-1

Front

What is the amount of matter in an object called?

Back

The amount of matter in an object is called mass.

Front

What are the three main subatomic particles of an atom?

Back

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

Front

Where are protons located in an atom?

Back

Protons are located in the nucleus of an atom.

Front

What charge do electrons carry?

Back

Electrons carry a negative charge.

Tags

NGSS.MS-PS2-3

Front

What is the significance of isotopes in chemistry?

Back

Isotopes are variants of a chemical element that have the same number of protons but different numbers of neutrons, affecting their atomic mass.

Tags

NGSS.HS-PS1-8

Front

How do you calculate the atomic mass of an element?

Back

The atomic mass of an element is calculated by taking the weighted average of the masses of its isotopes based on their natural abundance.