Chapter 2.1, Problem 1LO

Summary Introduction

To diistinguish:

In-between atoms and elements.

Introduction:

An atom is the small part of an element which contains protons, neutrons and electrons. The protons and neutrons are present in the nucleus and the electrons are present in the orbital surrounding the nucleus. The protons are positively charges, neutrons are neutral and the electrons are negatively charged.

An element is the basic unit of matter that cannot be broken down into smaller parts. There are a total number of 92 elements present. The metal iron is present as an element in the molecule hemoglobin. The elements present in the same group in the periodic table have similar properties and undergo similar chemical reactions. The same name is give to the element and its atom.