Chapter 2.1, Problem 2CYP

Summary Introduction

To analyze:

The number of protons, neutron, and electrons present in calcium.

Introduction:

In the modern periodic table, elements are arranged according to their increasing atomic number. The symbol is derived as,${}_Z{}^{A}X$. In case of calcium, the symbol is represented as ${}_{20}{}^{40}Ca$ where “Ca” represents the chemical formula of calcium.

A is the atomic mass which is equal to the sum of the number of protons and the number of neutrons which is 40.

Z is the atomic number which is equal to the number of protons which is 20.

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

$\begin{array}{l}{p}^{+}\to proton \\ n^0\to neutron\\ e^{-}\to electron\end{array}$