In this video we will look at the classification and structure of substances. Matter is made up of microscopic units called atoms. An atom consists of a positive atomic nucleus (protons and neutrons) and a negative atomic shell (electrons).
00:00 Atoms and molecules
01:11 Structure of atoms (protons, electrons and neutrons)
03:08 Atomic number
03:44 Isotopes
05:24 Ions: anions and cations
07:02 Classification of matter
Негізгі бет Classification & structure of matter | protons, electrons and neutrons | atomic number
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