Download File 9.08.16 the periodic table

TALLOIDS
NMETALS
METALS
KEY
ERIODS
3
2
1
GROUP
S
Atomic mass -- # protons = # neutrons
# protons = # electrons in a stable atom
# protone + # neutrons = atomic mass
# protons = element = atomic number
NOTE: The Periodic Table will be used for several
activities and will not be completed with these notes.
TEKS 8.5C interpret the arrangement of the Periodic Table, including groups and periods, to explain how properties are used to classify elements
TEKS 8.5B identify that protons determine an element’s identity and valence electrons determine its chemical properties, including reactivity
The Periodic Table
The modern periodic table was created by the Russian chemist,
____________ ____________. ______________ are
represented on the Periodic Table with _____________
_______________. The elements are arranged from left to right
based on their ___________ _______________. The atomic number comes
from the number of _____________ present in stable atoms of that element.
_____________ determine the element’s _______________!
Here is the structure of the Periodic Table:
Columns
The ______________ on the Table are called ____________. The groups
are numbered from _______________. Elements within groups have very
similar ____________.
On your Periodic Table, find this symbol:
GROUPS
Next to the symbol, draw arrows to show which direction the columns go.
Which way do the groups go? _______________________________
Periods
The _________ on the Periodic Table have meaning as well. The rows are
called ____________. Next to the periods, draw this arrow to show the
direction of the periods.
Across any period, the _____________ of
elements gradually change. For example, as you move from left to right across
the table, atoms tend to become smaller in size, but ___________ in mass.
Which way do the periods go?____________________________________
Key
Notice the ______ at the top of the Periodic Table. This is a __________ that
tells us what all of the ____________ and _____________ mean.
Label the key on the Periodic Table.
14
 Atomic _____________
Si
 Name = chemical symbol = ______________ symbol
 Atomic _____________
28.068
Silicon
Major Groups
Elements are classified into ____________ large groups on the Periodic Table.
The groups are _____________, _________________ and
___________________.
Color the three groups on your periodic table and make a key. Use the colors
listed below:
Metals
= blue
Non-metals
= green
Metalloids
= yellow
KEY
RIODS
___
___
___
GROUP
S
Atomic mass - # protons = # ________________
# protons = # _______________ in a stable atom
# protons + # neutrons = __________ ________
# protons = _______________ = atomic number
___________
___________
___________
_____________