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Chemistry (Unit 1) > Chapter 2 - Atomic Theory > Flashcards

Chapter 2 - Atomic Theory Flashcards

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1
Q

Atomic number is equal to…

A

How many protons an atom has.

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2
Q

Mass number is equal to…

A

The number of protons and neutrons.

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3
Q

Isotopes are…

A

Atoms with the same atomic number but different mass numbers.

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4
Q

Atoms that lose electrons are…

A

Positive.

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5
Q

Atoms that gain electrons are…

A

Negative…

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Chemistry (Unit 1) (5 decks)

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