Download the periodic table

CHEMISTRY TEST REVIEW
Use this as a study tool to review for your CCA, October 18 th.
THE PERIODIC TABLE
The periodic table organizes
elements in a specific order.
Rows are called PERIODS
and
Columns are called GROUPS
Elements in the same Group,
have similar physical and
chemical properties.
Most Reactive Metals are in
groups 1 & 2.
Most Reactive Nonmetals are
in groups 16&17.
Group 18 is stable.
METALS, NONMETALS, METALLOIDS
METALS
METALLOIDS
NONMETALS
are found on the LEFT side of
the Periodic Table.
make the stair-step dividing
line.
Reactivity increases moving Left
-
found on the RIGHT side of the
Periodic Table
(except for Hydrogen)
Reactivity increases moving right.
Noble Gases (18) are Stable.
Shiny
Good Conductors
Ductile
Malleable
Semiconductors
Share characteristics of
metals and nonmetals.
Dull
Poor Conductors
Brittle (Breakable)
Mostly Gases
USING PERIODIC TABLE to UNDERSTAND AN ATOM
Each box on the periodic table tells you information about one element.
Using these boxes, you will be able to determine a lot about an atom.
Atomic Number will always
be the whole number on top
&
Atomic Mass will be found on
the bottom.
The ATOMIC NUMBER determines the number of PROTONS and NEUTRONS!
Using the ATOMIC MASS and the ATOMIC NUMBER, you can determine the number of ELECTRONS.
THE ATOM
Locations:
Protons and Neutrons are found in the Nucleus.
Electrons are found outside of the Nucleus.
Finding the Number of Subatomic Parts:
Use your tricks APE MAN to find the number of
protons, neutrons, and electrons.
A - Atomic Number
M – Atomic Mass
(equals)
PE-
(minus)
Protons
&
A- Atomic Number
Electrons
N-
(equals)
Neutrons
Using the Group Number, you can identify the
number of Valence Electrons.
Protons = Positive Charge
Neutrons = Neutral Charge
Electrons= Negative Charge
Protons MUST be equal to ELECTRONS!
Protons determine the element
If you change the amount to Protons, you create a new
element entirely.
If you change the number of electrons, you create an ION.
If