Chapter 2, Problem 3FTB

Summary Introduction

To review:

The given blank space in the statement, “atoms of the same element that differ in the number of neutrons in their nuclei are called ________. Some of these atoms spontaneously break apart, and in this process, they sometimes become different ________. Atoms that behave this way are described as being ________.”

Introduction:

The subatomic particles present in an atom are given their own unit of mass known as the atomic mass unit. Each proton and neutron has a unit mass of one, while the mass of electrons is almost negligible.