Atoms

Front

What is the charge of a neutron?

Back

Neutrons have a neutral charge.

Front

What is the charge of an electron?

Back

Electrons have a negative charge.

Front

What subatomic particles are located in the nucleus of an atom?

Back

Protons and neutrons are found in the nucleus.

Front

How many electrons does a neutral atom of Nitrogen have?

Back

A neutral atom of Nitrogen has 7 electrons.

Front

How do you calculate the number of neutrons in an atom?

Back

To find the number of neutrons, subtract the atomic number from the atomic mass.

Front

What is the atomic number of an element?

Back

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

Front

What is the atomic mass of an element?

Back

The atomic mass is the weighted average mass of an element's isotopes, typically measured in atomic mass units (amu).

Front

What is the role of protons in an atom?

Back

Protons determine the identity of an element and contribute to the atomic mass.

Front

What is the difference between an atom and an ion?

Back

An atom is neutral, while an ion has a net charge due to the loss or gain of electrons.

Front

What is an isotope?

Back

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