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9 votes
If 100g of an isotope undergoes two half-lives, how many grams will be remaining?

A. 10g
B. 50g
C. 25g
D. 12.5g

User Izzekil
by
5.1k points

1 Answer

8 votes

C. 25 grams

Step-by-step explanation:

100g l 0 half-lives

50g l 1 half-life

25g l 2 half-lives

User Tharen
by
4.6k points