Particles of an Atom

What is everything in our world made up of?

• Molecules

• Cells

• Atoms

• Elements

What are atoms considered in terms of matter?

• Complex structures

• Basic units of matter

• Energy packets

• Chemical compounds

Which subatomic particles are found in the nucleus of an atom?

• Protons and electrons

• Neutrons and electrons

• Protons and neutrons

• Only protons

Which subatomic particle has a negative charge?

• Proton

• Neutron

• Electron

• Nucleus

Where is nearly all the mass of an atom located?

• In the electron cloud

• In the protons

• In the neutrons

• In the nucleus