The Periodic Table
Group 1 Alkali Metals
Group 2 Alkaline Earth Metals
Groups 3-12 Transition Metals
Group 13 Boron Group
Group 14 Carbon Group
Group 15 Nitrogen Group
Group 16 Oxygen Group
Group 17 Halogens
Group 18 Noble Gases
1
Transition Metals
2 13 14 15 16 17
18
Group 1 Alkali Metals
Group 1 contains all metalsThey are VERY reactive. They are only found
combined with other elements since they are so reactive.
They have a low density, are soft, and are silver colored.
One Electron in outer shell
Potassium
Sodium
Group 2 Alkaline Earth Metals
Group 2 contains all metals
The are VERY reactive, but less reactive than group 1.
They have a low density, and are often mixed with other metals.
Two Electrons in outer shell
Magnesium
Group 3-12 Transition MetalsGroup 3-12 contains all metalsThey are less reactive than groups
1 and 2.
They are good conductors of thermal energy and heat.
The properties of transition metals varies among the different elements.
TitaniumMercury
Gold
Group 13 Boron Group
One Metalloid (semi-metal) and 4 metals
They are reactive, yet less reactive than groups 3-12
They are all Solid at room temperature.
They have 3 electrons in their outer shell.
Aluminum
Aluminum
Group 14 Carbon Group
1 nonmetal, 2 metalloids (semi-metals), 2 metals
They are all Solid at room temperature.
4 Electrons in Outer shell
Tin Wire
SiliconLead
Group 15 Nitrogen Group
2 nonmetals, 2 metalloids (semi-metals), 1 metal
They are all Solid at room temperature except for Nitrogen which is a gas.
5 Electrons in Outer Shell
Phosphorus
Group 16 Oxygen Group
3 nonmetals, 2 metalloids (semi-metals)
Elements in the Oxygen group are reactive.
They are all solids at room temperature except for Oxygen which is a gas.
6 Electrons in their outer level
Sulfur
Group 17 Halogens
There are 4 non-metals and 1 semi-metal
They are Very reactive and often combine with elements from group 1.
Never found uncombined in nature.
7 Electrons in Outer Shell
Iodine
Bromine
Group 18 Inert Gases (Noble Gases)
Made completely of nonmetals.
All are in the gas state at room temperature.
Considered to be NOBLE because they are unreactive.
Outer Electron Shell is full. 8 Electrons
Helium
Neon
Hydrogen
Most Simple Atom
Reactive with Oxygen
Colorless, odorless
Low Density
1 Electron in outer shell
