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An unknown radioisotope exhibits 8540 decays per second.

Chemistry: Matter & Change | 1st Edition | ISBN: 9780078746376 | Authors: McGraw-Hill Education ISBN: 9780078746376 131

Solution for problem 58 Chapter 24

Chemistry: Matter & Change | 1st Edition

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Chemistry: Matter & Change | 1st Edition | ISBN: 9780078746376 | Authors: McGraw-Hill Education

Chemistry: Matter & Change | 1st Edition

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Problem 58

An unknown radioisotope exhibits 8540 decays per second. After 350.0 min, the number of decays has decreased to 1250 per second. What is the half-life?

Step-by-Step Solution:
Step 1 of 3

Electrical conductivity and “band theory” Solids only conduct electrons when they have unpaired electrons in orbitals – This is the same as saying they must have partly filled bands to conduct electrons Metals have partly filled bands even at 0K Semiconductors/insulators have filled and empty bands at 0K Band structure for semiconductors Conduction in an intrinsic (very pure) semiconductor can be achieved by the thermal promotion of electrons across the band gap, giving two partly filled bands Doping semiconductors ▯ The addition of very small amounts of dopant can dramatically influence semiconductor properties ▯ The conductivity of doped semiconductors varies less (than that for an intrinsic semiconductor) with tem

Step 2 of 3

Chapter 24, Problem 58 is Solved
Step 3 of 3

Textbook: Chemistry: Matter & Change
Edition: 1
Author: McGraw-Hill Education
ISBN: 9780078746376

This full solution covers the following key subjects: . This expansive textbook survival guide covers 24 chapters, and 2831 solutions. This textbook survival guide was created for the textbook: Chemistry: Matter & Change, edition: 1. Chemistry: Matter & Change was written by and is associated to the ISBN: 9780078746376. The answer to “An unknown radioisotope exhibits 8540 decays per second. After 350.0 min, the number of decays has decreased to 1250 per second. What is the half-life?” is broken down into a number of easy to follow steps, and 25 words. The full step-by-step solution to problem: 58 from chapter: 24 was answered by , our top Chemistry solution expert on 11/10/17, 05:56PM. Since the solution to 58 from 24 chapter was answered, more than 743 students have viewed the full step-by-step answer.

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An unknown radioisotope exhibits 8540 decays per second.