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Home Q & A Board Science-Related Homework Help Chemistry (Moderator: Laser_3)
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Whelan Whelan
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9 years ago
Carbon-14, which is present in all living tissue, radioactively decays via a first-order process. A one-gram sample of wood taken from a living tree gives a rate for carbon-14 decay of 13.6 counts per minute. If the half-life for carbon-14 is 5715 years, how old is a wood sample that gives a rate for carbon-14 decay of 7.9 counts per minute?
A) 2.2 × 103 yr
B) 3.1 × 103 yr
C) 4.5 × 103 yr
D) 1.4 × 104 yr
Textbook 
Introductory Chemistry Essentials

Introductory Chemistry Essentials


Edition: 5th
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hbutler2hbutler2
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Whelan Author
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9 years ago
this is exactly what I needed
amandamraz
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Correct Slight Smile TY
kevin12323h
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2 hours ago
This helped my grade so much Perfect
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