The periodic table is used to identify the basic organization
of elements.
Slide 3
Every periodic table will have a square for each element with
the following: a) atomic number the number of protons in each atom
b) atomic mass average mass of the element c) element name d)
element symbol
Slide 4
The elements on the periodic table are arranged numerically by
atomic number.
Slide 5
A horizontal row on the periodic table is called a period.
Families, aka groups, are vertical columns of elements on the
periodic table. Elements in the same family have similar
properties. Periods Family
Slide 6
There is a zig zag line on the right side of the table. It
divides the periodic table into two sections of elements, metals
and nonmetals.
Slide 7
Metals A major group of elements on the left of the zigzag
line. Examples: Sodium (Na), Calcium (Ca), Iron (Fe), and Aluminum
(Al) The majority of the elements are metals. Sodium Metal Calcium
Metal Iron Ore Aluminum
Slide 8
Nonmetals A major group of elements on the right of the zigzag
line. Examples of nonmetals: Chlorine (Cl), Oxygen (O), Sulfur (S),
and Iodine (I) Chlorine Gas Liquid Oxygen Sulfur Crystals
Iodine
Slide 9
Chemical symbols show which elements compose a substance.
Symbols are written with one, two, or three letters The first
letter is always capitalized. The second or third letter is always
lowercase. Each element has a different symbol. Oxygen = O Sodium =
Na Unununium = Uuu
Slide 10
Element Symbols you need to know: ElementSymbol SodiumNa
ChlorineCl HydrogenH OxygenO CarbonC NitrogenN CalciumCa IronFe
AluminumAl SulfurS IodineI
