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The center of an atom is known as the

• nucleus

• electron cloud

• neutron cloud

• mass circle

Protons have this type of charge

• positive
• negative
• neutral - no charge

A particle that orbits around the nucleus is a(n)...

• Proton
• Neutron
• Electron
• Quark

What does the nucleus of an atom contain?

• Electrons and neutrons

• Protons and neutrons

• Neutrinos and positrons

• Electrons and megatrons

What are the 3 subatomic particles that make-up the atom?

• protons, neutrons, and isotopes
• neutrons, isotopes, and electrons
• positives, negatives, and electrons
• protons, neutrons, and electrons

Neutrons have this type of charge

• positive
• negative
• neutral - no charge

All matter is made of what?

• energy 
• atoms 
• volume
• compounds 

Electrons have this type of charge

• positive
• negative
• neutral - no charge

The two areas of an atom are the 

• nucleus and electron cloud
• proton cloud and nucleus
• inside and outside
• mass and volume

What is an atom mostly made up of?

• protons
• electrons
• empty space
• neutrons