Unit 2.2

Front

What describes the movement of particles in a liquid?

Back

Particles in a liquid move slowly, passing each other.

Front

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

Back

Protons and neutrons are located in the nucleus of an atom.

Front

Where are electrons located in an atom and what is their charge?

Back

Electrons are located outside the nucleus and have a negative charge.

Front

Where are neutrons located in an atom and what is their charge?

Back

Neutrons are located inside the nucleus and have no charge.

Front

What is the charge of protons?

Back

Protons have a positive charge.

Front

What is the charge of electrons?

Back

Electrons have a negative charge.

Front

What is the charge of neutrons?

Back

Neutrons have no charge.

Front

What is the nucleus of an atom?

Back

The nucleus is the central part of an atom, containing protons and neutrons.

Front

What is the difference between protons and neutrons?

Back

Protons have a positive charge, while neutrons have no charge.

Front

What is the role of electrons in an atom?

Back

Electrons are involved in chemical bonding and reactions.