LC 8.25.23 Atomic Structure, Ions, Isotopes, and Nuclear Chem

Front

What is the atomic structure of an atom?

Back

An atom consists of a nucleus made up of protons and neutrons, surrounded by electrons that orbit the nucleus.

Front

What are protons?

Back

Protons are subatomic particles found in the nucleus of an atom, carrying a positive charge.

Front

What are neutrons?

Back

Neutrons are subatomic particles found in the nucleus of an atom, having no charge (neutral).

Front

What are electrons?

Back

Electrons are subatomic particles that orbit the nucleus of an atom, carrying a negative charge.

Front

What is an isotope?

Back

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

Front

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

Back

To find the number of neutrons, subtract the atomic number (number of protons) from the mass number of the isotope.

Front

Who proposed the idea of the indivisible atom called 'atomos'?

Back

Democritus proposed the idea of the indivisible atom, referring to it as 'atomos'.

Front

What is the mass number of an atom?

Back

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

Front

What is the charge of a neutron?

Back

Neutrons have no charge; they are neutral.

Front

What is the charge of a proton?

Back

Protons have a positive charge.