Basic Atomic Structure

What makes up everything?

• bacteria

• the four elements:  earth, water, fire, and air

• cells

• atoms

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How do we see atoms?

• we can't see them directly

• with a microscope

• with our eyes directly

What do we call the center of an atom?

• energy levels

• nucleus

• mitochondria

What do electrons do in an atom?

• constantly moving

• going into the nucleus

• staying still

What type of charge does a proton have?

• neutral

• positive

• negative

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What type of charge does an electron have?

• positive

• neutral

• negative

What type of charge does a neutron have?

• positive

• neutral

• negative

What kids of charges attract?

• only neutral charges attract

• positive attracts positive

• negative attracts negative

• positive attracts negative

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What keeps the fast-moving electrons from flying away?

• They are stuck on tracks like a train

• They are attracted to the protons in the nucleus

• they are attracted to the neutrons in the nucleus

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Why don't the electrons fall into the nucleus?  

• they don't like the nucleus

• They move too fast

• they move to slow

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