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In ordinary water, exactly 0 atoms as Tritium decays too rapidly (halflife 12.26 years) for any that was on earth when it formed (billions of years ago) to remain. In contaminated water, either deliberately or accidentally, it would depend on how much contaminate was added and the tritium concentration in it. Tritium can only be manufactured somewhere there is a high neutron flux (e.g., nuclear reactor or bomb, a star).

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14y ago

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How long does it take for 16.0 ng of tritium to decay to the point where 2.0 ng remains?

The half-life of tritium is around 12.3 years. To calculate the time it takes for 16.0 ng to decay to 2.0 ng, you would need to determine how many half-lives it would take for the remaining amount to reach 2.0 ng. With each half-life, the amount of tritium is reduced by half.


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The half-life of isotope X is 2.0 years how many years would it take for a 4.0 mg sample of X to decay and have only 0.50 mg of it remain?

It would take 4 half-lives for a 4.0 mg sample of X to decay to 0.50 mg. Since the half-life is 2.0 years, it would take 8.0 years for this decay to occur.


How many years will it take for 10g of radioactive uranium to decay into 5g of radioactive uranium?

Depending on the isotope: - for 235U: 7,038.108 years - for 238U: 4,468.109 years etc.


How many years will it take for 10 g of radioactive uranium to decay into 5 g of radioactive uranium?

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How many protons does each atom of tritium (hydrogen-3) have?

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How many neutrons in nucleus of atom for tritium?

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How many protons possessed by by a tritium atom?

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Why was embaling inportant to egyptians?

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How many atoms of tritium are in 3.75kg in water?

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