Transcript The Periodic Table

Monday, March 9
 Pick
up a Periodic Table Packet and put your name on it. DO
NOT LOSE THIS – IT IS A PROJECT GRADE!!!
 Read
on pages 3-4 in the packet, the readings called “A Brief
History of the Periodic Table” and “The Modern Periodic
Table”.
 Think
about how the Periodic Table was discovered and
developed based on the properties of elements and atoms.
 Copy
the atom notes on the board onto the back of your
packet. Leave space for additional video notes.
Atom Video
 As
you watch the Brainpop clip, reflect on:
 How
the atomic model changed over time
 Who
the key figures were
 The
model we use today
Periodic Table Videos
 Who
discovered the Periodic Table?
 How does it classify/organize elements?

http://www.pbslearningmedia.org/asset/nvhe_vid_periodic/
The Periodic Table
Arrangement of Elements
Elements
are organized
according to their properties.
You can predict an element’s
properties based on its
location on the periodic table.
LEFT SIDE: shiny,
good conductors,
bendable
RIGHT SIDE: dull,
poor conductors,
brittle
ZIG ZAG LINE: have
some properties of
metals and some of
nonmetals
Arrangement of Elements
7
PERIODS  horizontal rows
Element
properties in each period change
in a pattern (metals, metalloids, nonmetals)
18
GROUPS  vertical columns
Elements
in each group have similar
characteristics/properties.
Atomic Structure
 The
center of an atom  nucleus.
 Contains
 Protons
 Most
protons [+] and neutrons [no charge/neutral].
and neutrons have about the same atomic mass.
of an atom’s mass comes from its nucleus.
 Electrons
[-] move around the nucleus in a negatively
charged cloud.
 Mostly
empty space
 Electrons
have a very small mass
Atomic Number
Symbol
Name
Atomic Mass
# protons
# electrons
Atomic number = ____________
OR ___________.
#
neutrons
Atomic mass – Atomic number = ____________.
Oxygen
8
16
8
8
8
To Do
 Follow
the instructions on Page 1 of your
packet for coloring and labeling your
Periodic Table
 Color
lightly so you can still see all
information
*Do not lose this packet – it is a project grade!
You must bring it every day to school with you.