Glencoe Physical Science 2012 Student Edition (Glencoe Science) (McGraw-Hill Education)
Glencoe Physical Science 2012 Student Edition (Glencoe Science) (McGraw-Hill Education)
1st Edition
ISBN: 9780078945830
Author: Charles William McLaughlin, Marilyn Thompson, Dinah Zike
Publisher: Glencoe Mcgraw-Hill
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Chapter 20.1, Problem 4R
To determine

Whether Glencoe Physical Science 2012 Student Edition (Glencoe Science) (McGraw-Hill Education), Chapter 20.1, Problem 4R , additional homework tip  1is radioactive or stable.

Expert Solution & Answer
Check Mark

Answer to Problem 4R

Glencoe Physical Science 2012 Student Edition (Glencoe Science) (McGraw-Hill Education), Chapter 20.1, Problem 4R , additional homework tip  2is radioactive.

Explanation of Solution

Stable helium has two protons and two neutrons in the nucleus and thus has an atomic weight of Glencoe Physical Science 2012 Student Edition (Glencoe Science) (McGraw-Hill Education), Chapter 20.1, Problem 4R , additional homework tip  3This is a very small and a light nucleus. Thus, adding or subtracting even one neutron from its nucleus will have large effect on its stability. Adding two neutrons would cause Glencoe Physical Science 2012 Student Edition (Glencoe Science) (McGraw-Hill Education), Chapter 20.1, Problem 4R , additional homework tip  4increase in its atomic weight which will hinder its stability.

Conclusion:

Glencoe Physical Science 2012 Student Edition (Glencoe Science) (McGraw-Hill Education), Chapter 20.1, Problem 4R , additional homework tip  5is radioactive and highly unstable having half-life span of Glencoe Physical Science 2012 Student Edition (Glencoe Science) (McGraw-Hill Education), Chapter 20.1, Problem 4R , additional homework tip  6

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