avoughn2007 avoughn2007

09-03-2024
Chemistry

contestada

Sodium-22 undergoes positron emission as shown:
22 NaNe+B
11
10
If this decay has a half-life of 2.60 years, what mass of 72.5 g
sodium-22 will remain after 15.6 years?
g
Do not include units in your answer. Your answer should have three
significant digits.

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