BIOLOGY NOW-TEXT ONLY
BIOLOGY NOW-TEXT ONLY
15th Edition
ISBN: 9780393283990
Author: HOUTMAN
Publisher: NORTON
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Chapter 2, Problem 2TQ
Summary Introduction

An element is said to be defined as a substance, which consists of atoms having the same number of protons that is all the atoms have the same atomic number. All the atoms of any element must have the different number of neutrons, but they have the same number of protons therefore they have different masses.

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