The half-life for the radioactive decay of U-238is 4.5 billion years and is independent of initialconcentration.DPart AHow long will it take for 10% of the U-238 atoms in a sample of U-238 to decay?Express your answer using two significant figures.195] ΑΣΦt = 0.638Submit Previous Answers Request Answer* Incorrect; Try Again; 4 attempts remainingPart B?196] ΑΣΦΑN = 1.88. 10°If a sample of U-238 initially contained 1.4x108 atoms when the universe was formed 13,8 billion years amany U-238 atoms will it contain today?Express your answer using two significant figures.Submit Previous Answers Request Answer?5.X Incorrect; Try Again; 3 attempts remainingatoms.

Answered: Image /qna-images/answer/b657c531-f454-4eff-bfd6-c7a299912847.jpg

The half-life for the radioactive decay of U-238 is 4.5 billion years and is independent of initial concentration. Part A How long will it take for 10% of the U-238 atoms in a sample of U-238 to decay? Express your answer using two significant figures. 190 ΑΣΦ Α 0.638 Submit Part B Previous Answers Request Answer * Incorrect; Try Again; 4 attempts remaining ? 16] ΑΣΦ N- 1.88 10° If a sample of U-238 initially contained 1.4x10¹8 atoms when the universe was formed 13.8 billion years many U-238 atoms will it contain today? Express your answer using two significant figures. Submit Previous Answers Request Answer ут X Incorrect; Try Again: 3 attempts remaining atoms

The half-life for the radioactive decay of U-238 is 4.5 billion years and is independent of initial concentration. Part A How long will it take for 10% of the U-238 atoms in a sample of U-238 to decay? Express your answer using two significant figures. 190 ΑΣΦ Α 0.638 Submit Part B Previous Answers Request Answer * Incorrect; Try Again; 4 attempts remaining ? 16] ΑΣΦ N- 1.88 10° If a sample of U-238 initially contained 1.4x10¹8 atoms when the universe was formed 13.8 billion years many U-238 atoms will it contain today? Express your answer using two significant figures. Submit Previous Answers Request Answer ут X Incorrect; Try Again: 3 attempts remaining atoms

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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