This chemistry video tutorial explains how to calculate the average atomic mass of an element given the percent abundance of each isotope. Chemistry - Basic Introduction: https://www.youtube.com/watch?v=-KfG8kH-r3Y Significant Figures Review: https://www.youtube.com/watch?v=l2yuDvwYq5g Unit Conversion Problems: https://www.youtube.com/watch?v=eK8gXP3pImU Pure Substances & Mixtures: https://www.youtube.com/watch?v=OHhnm2p5G3o Physical and Chemical Changes: https://www.youtube.com/watch?v=YE2xaMsoGFU _________________________________ Atoms - Basic Introduction: https://www.youtube.com/watch?v=acdkMeEKCNQ Cations and Anions Explained: https://www.youtube.com/watch?v=aAV2DMAI5f8 Diatomic Elements & Molecules: https://www.youtube.com/watch?v=gi337Mx7wTc Elements, Atoms, & Molecules: https://www.youtube.com/watch?v=pSJeMJaCkVU Protons, Neutrons, & Electrons: https://www.youtube.com/watch?v=65dDZulPhtg __________________________________ Average Atomic Mass: https://www.youtube.com/watch?v=JT18bDAadQ0 What Are Isotopes? https://www.youtube.com/watch?v=bagegEZBtOs Percent Abundance of Isotopes: https://www.youtube.com/watch?v=w-WhwWNC8-Q Ionic and Covalent Bonding: https://www.youtube.com/watch?v=uDFLHTDJ4XA Naming Molecular Compounds: https://www.youtube.com/watch?v=3agUL7-ezXk Writing Formulas - Ionic Compounds: https://www.youtube.com/watch?v=GJ4Mds0CWLE __________________________________ Final Exams and Video Playlists: https://www.video-tutor.net/ Full-Length Videos and Worksheets: https://www.patreon.com/MathScienceTutor/collections