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Scrat [10]
2 years ago
7

What is about true about these atoms calcium, gold,argon,iodine

Biology
1 answer:
UNO [17]2 years ago
6 0

Answer:

In moon rock sample the ratio of the number of stable argon-40 atoms present to the number of radioactive potassium−40 atoms is 7:1. Assume that all the argon atoms were produced by the decay of potassium atoms, with a half-life of 2.5×10^9yr. The age of the rock is

Explanation:

Hope this helps :)

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hope this helps :)

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3 years ago
Which process in the water cycle stops pollutants from continuing on in the cycle?
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I am not sure but I believe it is B. Precipitation because the definition is: <span>the action or process of precipitating a substance from a solution ^-^ Hope this helps</span>
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Where are the tectionic plates located on earth​
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