2.1 Isotopes Flashcards

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1
Q

Proton (Position, Mass, Charge, Job)

A

In the nucleus, heavy (1amu), +1, determines the identity of an atom

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2
Q

Neutron (Position, Mass, Charge, Job)

A

In the nucleus, heavy (1amu), 0, holds the nucleus together

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3
Q

Electron (Position, Mass, Charge, Job)

A

Outside the nucleus, virtually zero, -1, responsible for reactivity

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4
Q

Isotope

A

same element but with a different mass

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5
Q

7 protons, 7 neutrons, 10 electrons

A

Nitrogen atom, -3 charge, 14amu

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6
Q

Carbon, 12 amu, -4 charge

A

6 protons, 6 neutrons, 10 electrons

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7
Q

Why are isotopes useful in scientific research?

A

Some are radioactive and you can use it to test if something absorbed something radioactive. They also can be used to determine the age of a fossil.

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