1. Periodic Table

2. What is the periodic table?
Shows all known elements in the universe.
Elements: A pure substance made up of one kind of atom that cannot be broken down into simpler substances by physical or chemical means
Organizes the elements by chemical properties.

3. I made the PERIODIC TABLE !
I am Dmitri Mendeleev!
I made the PERIODIC TABLE !

4. Henry Mosely
Rearranged the periodic table by atomic number

5. Using the Periodic Table
The boxes that make up the periodic table contain a significant amount of information. To understand this information, it is necessary to refer to the periodic table’s key(s) 8 O
Oxygen
15.999
Atomic Number
(Number of protons)
Element Symbol
(Written with a capital letter or a capital followed by a lower case if two letters )
Element Name
Atomic Mass
(Rounded to a whole number, equals
the number of protons and neutrons)
Class
Color
Metal
Non-Metal
Metalloid
State
Room Temp.)
Symbol Color
Solid
Liquid
Gas
What is Oxygen’s physical state of matter?
Which class does Oxygen fall into?

6. What is the ATOMIC NUMBER?
The number of protons found in the nucleus of an atom

7. How do I find the number of protons, electrons, and neutrons in an element using the periodic table?
# of PROTONS = ATOMIC NUMBER
# of ELECTRONS = ATOMIC NUMBER
# of NEUTRONS = ATOMIC _ ATOMIC
mass NUMBER

10. Metals, Metalloids, & Nonmetals

11. Properties Metals Nonmetals Metalloids
Good conductors of Electricity
Shiny
Most are solids are room temperature
Many are Malleable
Some are ductile
A chemical property of metal is its reaction with water which results in corrosion.
Poor conductors of heat and electricity
Brittle
Dull
Many non-metals are gases
Semiconductor of heat & electricity
Some properties of metals and some properties of nonmetals