The difference between oxygen 16 and oxygen 18. Introduction: An isotope is defined as an element having the same atomic number but a different mass number. In the modern periodic table, elements are arranged according to their increasing atomic number. The symbol is derived as X Z A . Where X represents the chemical formula of the element present in the periodic table. A is the atomic mass which is equal to the sum of a number of protons and number of neutrons. Z is the atomic number which is equal to the number of protons. The nucleus is defined as the sum of a number of neutrons and protons. p + → p r o t o n n 0 → n e u t r o n e − → e l e c t r o n Isotopes are defined only in the modern periodic table.

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Chapter 2.1, Problem 4CYP

Summary Introduction

To analyze:

The difference between oxygen 16 and oxygen 18.

Introduction:

An isotope is defined as an element having the same atomic number but a different mass number. In the modern periodic table, elements are arranged according to their increasing atomic number. The symbol is derived as ${}_{Z}^{A}X$ .

Where X represents the chemical formula of the element present in the periodic table.

A is the atomic mass which is equal to the sum of a number of protons and number of neutrons.

Z is the atomic number which is equal to the number of protons.

The nucleus is defined as the sum of a number of neutrons and protons.

$\begin{array}{l} p^{+} \to p r o t o n \\ n^{0} \to n e u t r o n \\ e^{-} \to e l e c t r o n \end{array}$

Isotopes are defined only in the modern periodic table.

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