Relative Atomic Mass And Atomic Mass Unit In Urdu Hindi | Fundamentals Of Chemistry | Lec# 7

#ConceptOfRelativeatomicmassAndCarbon-12 For Notes Click On link: https://www.fiverr.com/share/Ll8Zvo #Relativeatomicmassandatomicmassunit #Atomicmass #Atomicmassunit #Relativeatomicmassclass9 #whatisrelativeatomicmass #Relativeatomicmassinurdu #Atomicmassclass9 #Relativeatomicmassinhindi #Chemistryrelativeatomicmass #Atomicmassclass9chemistry #Definerelativeatomicmass #Relativeatomicmassandatomicmassunitclass9 #Atomsandmoleculesclass9 #Howtocalculaterelativeatomicmass #Relativeatomicmasscarbon12 #9thclasschemistry ........................................................................................................................................................... The ratio of the average mass of the atom to the unified atomic mass unit. ... An atomic weight (relative atomic mass) of an element from a specified source is the ratio of the average mass per atom of the element to 1/12 of the mass of an atom of 12C. Atomic weight, also called relative atomic mass, is the ratio of the total weight of the atoms of a chemical substance to a norm. The normal unit of atomic mass has been one-twelfth of the atomic mass of the carbon-12 isotope since 1961.