Carbon-14 is a radioactive substance

A human body required 0.01 m activity of radioactive substance after 24 hours .Half li of radioactive substance is 6 hours .Then
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2. asked by Aashika Jain
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Cosmic ray bombardment of the atmosphere produces neutrons, which in turn react w/ nitrogen to produce radioactive carbon-14.
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2. asked by John
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Every week, 2/5 of a radioactive substance remains from an initial amount of 150mg.How many milligrams of the radioactive
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Juliet started working with a radioactive substance. In 1997, she started with 200 g. When she measured again in 2002, she had
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Juliet started working with a radioactive substance. In 1997, she started with 200 g. When she measured again in 2002, she had
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2. 31 views
Grace starts with 100 milligrams of a radioactive substance. The amount of the substance decreases by 14each week for a number
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Nick starts with 20milligrams of a radioactive substance. The amount of the substance decreases by 1/2 each week for a number of
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2. 103 views
Nick starts with 20milligrams of a radioactive substance. The amount of the substance decreases by 1/2 each week for a number of
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2. 105 views
Demarco starts with 10 milligrams of a radioactive substance. The amount of the substance decreases by 40% each week for a
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Nick starts with 20 milligrams of a radioactive substance. The amount of the substance decreases by ½ each week for a number of
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2. 67 views