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r-ruslan [8.4K]
3 years ago
14

How can radioactivity be used to help find the age of an object ?

Chemistry
1 answer:
gogolik [260]3 years ago
8 0

Hope this answers your question Mariaduong159

Radiometric Dating. It's used to find the dates of ricks and other objects based on what the known decay rate of radioactive isotopes. Different forms of this method can also estimate the age of natural and man-made materials.

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A chemist makes up a solution by dissolving 42.0 g of Mg(NO3)2 in enough water to produce a final solution volume of 259 mL. To
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Answer:

The molar mass of Mg(NO₃)₂, 148.3 g/mol.

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