Atoms, Molecules, and Compounds

Front

What is formed when two or more atoms bond together?

Back

A molecule is formed when two or more atoms bond together.

Front

In what structure do scientists imagine electrons travel around the atom’s nucleus?

Back

Electrons travel in shells around the atom’s nucleus.

Front

What is the mass of an electron compared to protons and neutrons?

Back

The mass of an electron is about 1/2000 of the mass of protons and neutrons.

Front

What type of charge do electrons carry?

Back

Electrons carry a negative charge.

Front

What type of charge do protons have?

Back

Protons have a positive charge.

Front

What are the three main subatomic particles in an atom?

Back

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

Front

Where are protons and neutrons located in an atom?

Back

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

Front

What is the charge of neutrons?

Back

Neutrons have no charge; they are neutral.

Front

What is the role of electrons in chemical bonding?

Back

Electrons play a key role in chemical bonding by being shared or transferred between atoms.

Front

What is the difference between an atom and a molecule?

Back

An atom is the smallest unit of an element, while a molecule is a group of two or more atoms bonded together.