1. Metals, Metalloids, and Nonmetals
The Periodic Table
Metals, Metalloids, and Nonmetals

3. * Group 1 are the Most REACTIVE metals
* Transition Metals Group 3 - Group 12
Physical Properties
Chemical Properties
Conductors (Heat and Electricity)
Have Luster (Shiny)
Malleable (rolled or flattened)
Ductile (pulled in a wire)
Solids at Room Temp
*Except Mercury, symbol Hg
Metals Corrode
Corrosion: the deterioration of metals due to a chemical reaction with the environment
Ex. Iron & Oxygen = Rust

4. Nonmetals Group 17 most Reactive Nonmetals (the Halogens)
Group 18 least Reactive (the Nobel Gases)
Life on Earth Depends on Nonmetals (H,C,N,O)
Physical Properties
Chemical Properties
Poor Conductors
Dull (not shiny)
Brittle (Break easily)
4. Mostly Gases, a few Solids
*Except Bromine is a Liquid
Gain Electrons easily
due to location in the higher groups
Diatomic Molecule: Made up of two atoms Ex. Oxygen = O2
Hydrogen = H2

5. Metalloids Contain some properties of both metals and nonmetals
All Solids at room temperature
Metalloids are Semiconductors. They can conduct electric currents under some conditions, but not under others.