elements and periodic table
DESCRIPTION
Elements and Periodic Table. SC.8.P.8.6 Recognize that elements are grouped in the periodic table according to similarities of their properties. • Analyze and explain how elements are grouped in the periodic table according to similarities of their properties. . Objectives. BELLRINGER. - PowerPoint PPT PresentationTRANSCRIPT
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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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Obj
ectiv
es
• Analyze and explain how elements are grouped in the periodic table according to similarities of their properties.
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BELL
RING
ER
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ELEM
ENTS
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 side According 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 CaRa
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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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Exit
ticke
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