Dimitri Mendeleev Published the first periodic table by increasing atomic mass

Dmitri Mendeleev

Henry Mosely Published the modern day periodic table by increasing atomic number

Bright from reflected light Metals Shininess - Bright from reflected light EX: Polished Silver

Ability to be pounded or hammered into different shapes Metals Malleable - Ability to be pounded or hammered into different shapes

Examples: Gold, Copper, Iron, Platinum, Aluminum Metals Malleable - Examples: Gold, Copper, Iron, Platinum, Aluminum

Metals Ductile - Ability to be stretched into long wires

Metals Good Conductors Magnetic - some Corrosion

A mixture of 2 or more metals Alloy - A mixture of 2 or more metals

Metals Alloy - Brass, Bronze, White Gold, Rose Gold, Pewter

Metals Rose Gold

Metals Bronze

Metals Brass

Metals Alkali Metals - Column 1 1 Valence Electron

Metals Alkaline Earth Metals - Column 2 2 Valence Electrons

Metals Transition Metals - Columns 3 - 12 Changing Valence Electrons

Columns 13 - 16 Metals - Mixed Groups 3, 4, 5 & 6 Valence Electrons

Rare-Earth Metals Periods 6 & 7 57 – 71 & 89 - 103 Lanthanides & Actinides

All Elements to the RIGHT of the Zig-Zag Line Non-Metals All Elements to the RIGHT of the Zig-Zag Line

In General, Physical properties of Non-metals are opposite of Metals

17 Elements including the Noble Gases Non-Metals 17 Elements including the Noble Gases

Non-Metals Diatomic Molecules H2 Br2 I2 O2 N2 Cl2 F2

Non-Metals Families - Boron Family Column 13 3 Valence Electrons

Non-Metals Families - Carbon Family Column 14 4 Valence Electrons

Non-Metals Families - Nitrogen Family Column 15 5 Valence Electrons

Non-Metals Families - Oxygen Family Column 16 6 Valence Electrons

Non-Metals Families - Halogen Family Column 17 7 Valence Electrons

Families - Noble Gas Family Column 18 Non-Metals Families - Noble Gas Family Column 18 8 Valence Electrons except for Helium - 2

Metaloids Metaloids - Elements touching the Zig-Zag Line

Metaloids Metaloids - Varying ability to conduct electricity