###### Asked in Needs a Topic

Needs a Topic

# How much of the sample is xenon-131 after 16.14 days?

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## Related Questions

###### Asked in Radon

### If the half life of radon 222 is 3.82 days if a sample of gas contains 4.38 micrograms of radon 222 how much will remain in the sample after 15.2 days?

15.2 days is 3.979 half lives (15.2/3.82)
Therefore there will be .53.979 = .0634 of the initial sample or
.277 micrograms.
Use the half life equation of N=No(1/2)(t/T) for a direct
calculation, where N is the remaining amount, No is the original
amount, t is the amount of elapsed time and T is the length of one
half life.

###### Asked in Christmas, History of the United States

### Who anchored his ship on Christmas Day 1614 in Maine naming the spot Christmas Cove?

John Smith
I think this information is not correct. According to John
Smith's "A Description of New England," he arrived at Monhegan,
Maine in April of 1614, explored and traded along the coast, and
was back in London in October 1614. So, he would have been in what
is now called Christmas Cove between those two dates.
There are much better sources for such material than the one
cited.

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