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Chemistry Elements > Atom structure > Flashcards

Atom structure Flashcards

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1
Q

What is the mass number?

A

Protons + neutrons in the atom

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2
Q

What is the atomic number?

A

Number of protons in an atom

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3
Q

23Na How many neutrons does sodium have

11

A

12 neutrons

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4
Q

What is an isotope?

A

Isotopes are different forms of the same element which have the same number of protons but a different number of neutrons.

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Chemistry Elements (5 decks)

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