Lesson 2.1 Flashcards by Dana K

Q

Smallest basic unit of matter

A

Atoms

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Q

____ has protons and neutrons

A

Nucleus

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Q

has nucleus and electrons

A

Atoms

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Q

_____ are in energy levels outside nucleous

A

Electrons

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Q

one type of atom

A

element

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Q

made of diff. elements bonded together

A

compound

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Q

atom that gained/lost electron

A

Ion

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Q

Ions for __ or __ charges

A

Positive or Negative

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Q

ionic bonds form b/w ___ ________ ions

A

opp. charged

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Q

form when atoms share a pair of (e-)

A

covalent bonds

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