Periodic Table Explained: Introduction
8:51
Periodic Table Explained: Name Origin
1:00:11
What is the Periodic Table? How are Elements Organized?
13:31
Atomic Structure: Protons, Electrons & Neutrons
3:01:41
Intro to Chemistry, Basic Concepts - Periodic Table, Elements, Metric System & Unit Conversion
3:05
A canção da Tabela Periódica! (Atualizado 2018)
18:14
Basic Chemistry Concepts Part I
57:35
The Origin of the Elements
18:53