other elements half lives Flashcards by Lizzie Agombar | Brainscape

Q

Polonium- 210

A

138 days

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Q

lead-210

A

22.3 years

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Q

Thorium-230

A

75,000 years
disintegrations per minute per gram
amount of sediment = ln2 / slope

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Q

K-40

A

1.1x10 ^9 years

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