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Sam is comparing the half-life of two isotopes of uranium. The half-life of Uranium-238 is 4.5×109 years. The half-life of Uran...Asked by Gelo
sam is comparing the half-life of two isotopes of uranium. The half-life of uranium-238 is 4.5 × 10⁹ years. The half- life of uranium-233 is 1.6 × 10⁵ years. He computed how much greater the half-life of uranium-238 is than that of uranium-233, and his calculator displayed the number 2.81E4. Which is this number in scientific notation?
A. 2.81 × 10^-⁴
B. 4 × 10^2.81
C. 2.81 × 10⁴
D. 2.81 + 10⁴
A. 2.81 × 10^-⁴
B. 4 × 10^2.81
C. 2.81 × 10⁴
D. 2.81 + 10⁴
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