Periodic Table Explained: Introduction

Periodic Table Basics

The periodic table | Atoms, elements, and the periodic table | High school chemistry | Khan Academy

The Last Gap In The Periodic Table w/ Neil deGrasse Tyson

Latin name and symbol of elements

💡 Why Sodium is "Na" and Potassium is "K"? | Secret of Element Symbols

Periodic Table of Elements - Trends (atomic size, ionization energy, electronegativity, ion size)

Periodic Trends in Electronegativity