2 years ago

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

1 answer:

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:

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