Periodic Table Flashcards by Greyson Greaves | Brainscape

Q

Mass number =

A

Protons + Neutrons

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Q

Atomic number =

A

Proton/Electron number.

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Q

An isotope =

A

Same protons, diff. neutrons.

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Q

% abundance of an isotope =

A

Multiply the mass number by the percentage of the isotope (and add)

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