A radioactive material has a half-life of 20 days. A sample of the material contains 8.0 × 101° atoms. How many atomic nuclei have decayed after 60 days? A 1.0 x 1010 B 4.0 × 1010 C 6.0 x 1010 D 7.0 x 1010

A radioactive material has a half-life of 20 days. A sample of the material contains 8.0 × 101° atoms. How many atomic nuclei have decayed after 60 days? A 1.0 x 1010 B 4.0 × 1010 C 6.0 x 1010 D 7.0 x 1010

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter30: Nuclear Physics

Section30.3: Radioactivity

Problem 30.4QQ: Suppose you have a pure radioactive material with a half-life of T1/2. You begin with N0 undecayed...

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O a .ll + C 8% 8:37 pm
David
25 minutes ago
38 A radioactive material has a half-life of 20 days.
A sample of the material contains 8.0 × 1010 atoms.
How many atomic nuclei have decayed after 60 days?
A 1.0 x 1010
B 4.0 x 1010
C 6.0 x 1010
D 7.0 x 1010
A

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