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Svetlanka [38]
2 years ago
14

If a rock sample has a half life of 10 years, and has 100 atoms of parent material today, how many half lives will have passed b

efore it has only 25 atoms of parent material left?
Biology
2 answers:
Lyrx [107]2 years ago
5 0

Answer:

1 half life, two half lifes to equal 25 atoms left

The 1 half life gets the amount of atoms to 50

2 half lifes gets the amount of atoms to 25.

Half life takes the amount of substance and halves it every certain amount of years.

NNADVOKAT [17]2 years ago
4 0

Answer:

<h2>1 half life,2 half life's to equals 25 atoms left.</h2>

<h2>The 1 half life gets the amount of atoms to 50.</h2>

<h2>Two half life's gets the amount of atoms to 25.</h2><h2>Half life's takes the amount of substance and Half's it every certain amount of years.</h2>
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