Isotopes Flashcards by Alei Sebolino

Q

Decay process of c14-n 14

A

Beta

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Q

Half life of c14-n14

A

5.37ka

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Q

Applicable dating range of c14-n14

A

<60ka

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Q

40k-40A decay process

A

E capture

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Q

40k-40Ar half life

A

1.25 Ga

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Q

40k-40Ar half life

A

1.25 ga

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Q

40k-40Ar applicable dating range

A

500ka to >4.5 ga

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Q

87rb-87sr decay process

A

Beta decay

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Q

87rb-87 Sr half life

A

8ga

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Q

87sr-87rb applicable dating range

A

10ma to >4.5ga

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Q

147sm-143nd decay process

A

Alpha

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Q

147sm-143nd half life

A

106 ga

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Q

147sm-143nd dating range

A

200ma to >4.15 ga

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Q

232th-pb208 decay process

A

Alpha and beta

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Q

232th-pb208 half life

A

14.0 ga

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Q

232th-pb208 dating range

A

10ma to >4.5ga

Q

235u-pb207 decay process

A

Alpha and beta

Q

U235topb207 half life

A

704ma

Q

235u-207pb dating range

A

10 ma to >4.5 ga

Q

U238 pb206 decap process

A

Alpha and beta

Q

U238-pb206 half life

A

4.47 ga

Q

U238-pb206 dating range

A

10ma to >4.5 ga