What Is Life? A Guide to Biology with Physiology
What Is Life? A Guide to Biology with Physiology
4th Edition
ISBN: 9781319065447
Author: Jay Phelan
Publisher: W. H. Freeman
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Chapter 2, Problem 1MC
Summary Introduction

Introduction:

The atomic number refers to the number of protons in the nucleus.

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The nucleus of an atom contains:   a. neutrons and electrons   b. protons and electrons   c. protons only   d. neutrons and protons   e. neutrons only
For 42He*2 The atomic number is f and there are are protons. The mass number is and there are nucleons. There are neutrons. The charge is and there are are electrons. This radiation is called a. alpha b. beta C. gamma d. 0 е. 1 f. 2 g. 3 h. 4 i. 5 j. 6
Isotopes differ from each other only in the number of electrons they contain.   Select one: a. True b. False
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