Atoms, Molecules, and Compounds

They are everywhere! They make up the air you breathe, the water you drink, and the food you eat. They are in your furniture, clothing, and pets. They even make up you. What are they?

• Elements

• Molecule

• Atom

• Compounds

Tags

NGSS.MS-PS1-1

These are non living materials made of only one kind of atom.

• Mixtures

• Compounds

• Nucleus

• Elements

Molecules formed from different types of atoms, such as when carbon combines with oxygen to form carbon dioxide gas (CO2). Molecules formed from different types of elements are called what?

• Atoms

• Electrons

• molecules

• Compounds

Tags

NGSS.MS-PS1-1

What is formed when two or more atoms form together?

• Molecule

• Chemical reaction

• Physical reaction

• Compound

Tags

NGSS.MS-PS1-1

An atom has a center called the nucleus. Inside the nucleus are tiny particles called ______________ and _____________.

• Electrons

• Protons

• Neutrons

• Protons and neutrons

Protons have what kind of charge?

• Negative

• Positive

• Neutral

• Positive and negative

Neutrons have what kind of charge?

• Positive

• Negative

• Neutral

• both positive and negative

Electrons are tiny particles that orbit around an atom’s nucleus. Electrons are smaller and lighter than protons and neutrons. Electrons have a __________________ charge.

• Positive

• Neutral

• Nucleon

• Negative

Protons and neutrons have an atomic mass of _______________.

• 2 AMU

• 1/2000 of an AMU

• Very little

• 1 AMU

Tags

NGSS.HS-PS1-8

Electrons are smaller and lighter than protons and neutrons. In fact, their mass is about ________________ of protons and neutrons.

• 1/2000

• 2

• 3

• 4