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Elements
1. +
+
+ o
oo o
-
-
-
Proton (+)
Neutron (o)
Electron (-)
Nucleus (+)
1
2
34
Label the
parts of the
atom
S
ee
if
you
can
do
it
from
m
em
ory!!!!
2. ReviewReview
The AtomThe Atom
Its partsIts parts
Protons, neutrons, nucleusProtons, neutrons, nucleus
electronselectrons
3. ElementsElements
Simple substances thatSimple substances that
cannot be broken downcannot be broken down
into a simpler substanceinto a simpler substance
Any sample of matterAny sample of matter
made up of only 1 type ofmade up of only 1 type of
atomatom
4. ElementsElements
118(?) known elements118(?) known elements
92 exist naturally92 exist naturally
A few are man madeA few are man made
Most elements are foundMost elements are found
as solidsas solids