This book is an easy approach to fermions (quarks and leptons), thebasic building blocks of atom. This book will describe you theproperties and characteristics of each fermion, the extremely smallparticles which made the universe, with the indomitable efforts oftheir discoverers. Also you will find the answers of the followingmysterious points through the book. About The Author Nitin Sharma is a young author who holds M.Sc. Degree inbiotechnology. He believes that persistent endeavour is the onlychant to reach one's destination without which what one wants isnot easy to get. He salutes his grandfather Advocate Shree DamodarDayal Sharma and former president and missile man of India Dr.Abdul Kalam Azad who are his source of inspiration behind 'Mysteryof atom'. According to him "God is given you some hidden powers butthere is a need to feel, Move ahead as soon as possible with thepower of zeal". He is active in the field of teaching chemistrysince the age of ninetten. Presently he is faculty of Chemistry inBansal Classes, Jaipur where he nuture the students for Olympiadsand IIT-JEE. He says that the most precious ornamnet in theuniverse is education which simply means 'Development of Mind'. Ina very short message he wishes to convey to the youth. !!...Life is what you want to do; not what you did...!! !!...Let's forget what you did and move ahead to do a littlebit...! Table Of Contents Preface Acknowledgement Unfolding the Mysterious Theories Introduction to Atom Elementary Particles Fermions Quarks Leptons A Tribute to Sir John Dalton Glossary