kayah2004 kayah2004

24-01-2024
Chemistry

contestada

How much time is required for a 5.70 mg sample of ⁵¹Cr to decay to 0.600 mg if it has a half-life of 27.8 days?

A) 55.6 days
B) 83.4 days
C) 111.2 days
D) 139.0 days

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