elements and periodic table sc.8.p.8.6 recognize that elements are grouped in the periodic table...
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Elements and
Periodic
Table
SC.8.P.8.6 Recognize
that elements are
grouped in the periodic
table according to
similarities of their
properties.
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Obje
ctiv
es
• Analyze and explain how elements are grouped in the
periodic table according to similarities of their properties.
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BELL
RIN
GER
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ELE
MEN
TS
An element is a pure substance which cannot be split up into two or more simpler substances by chemical means.
H2
HydrogenAll Nitrogen atoms are identical. Lots of them make up the element Nitrogen!
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Note that an element:
Consists of only one kind of atom.
Cannot be broken down into a simpler type of matter by either physical or chemical means.
Can exist as either atoms (e.g. argon) or molecules (e.g. nitrogen).
Elements
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Examples of Elements
Is the smallest particle of an element and has
the same chemical propertiesof the element
Is made up of two or moreatoms that are chemically
bonded together
(note: these atoms are of the SAME element!!)
1 Hydrogen molecule
(H2)
1 Hydrogen atom(H)
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Atoms of the element Argon
Microscopic view :
of the atoms of the element argon (Ar) (gas phase).
Consists of only one kind
of atom
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Molecules of the element Nitrogen
Microscopic view of the molecules of the element nitrogen
(gas phase).
Consists of only one kind of atom
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There are 118 elements on earth!
What a mess!
Don’t worry, somebody took the time to find a pattern and organize them!
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Guided notes: Have your black and white periodic table ready to highlight, color, circle or underline, when instructed!
Let’s find out more about the Periodic Table!
On your left side
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and columns called _____________.
The periodic table is made up of rows called ________________,
Let’s check!-Right sideAccording to their _____________ and _____________ (appearance and behavior), elements are classified as ______________, ______________, and ___________.Most elements are _________, they are located on the ____________ side. ___________ are on the _____________!
Elements with ___________ chemical ___________ are located in the same column or group!
periods
metals
Nonmetalsright
propertiessimilar
groups or families
left
physicalchemical properties
metalsnonmetals
metalloids
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Let’s see some properties of the Elements!
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Class discussion: Why is it important to know the location of elements in the periodic table? We have only
5 min to come up with a
meaningful answer…
The properties of an element can be predicted from its location in the periodic table!
And, if I study the chemical and
physical properties of elements then I
can learn more about their uses
and interactions with other materials
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Magnesium
What am I?
Find out my properties and then classify
me!Where am I on the periodic table?Which group___Metal?___ Nonmetal?___Metalloid?____What other elements are similar to me____ _____ _____ _____ _____
On your own now!
2
BaSr
Be Ca
Ra
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Where am I on the periodic table?Which group___Metal?___ Nonmetal?___Metalloid?____What other elements are similar to me____ _____ _____ _____ _____
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Where am I on the periodic table?Which group___Metal?___ Nonmetal?___Metalloid?____What other elements are similar to me____ _____ _____ _____ _____
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Exi
t ti
cket