5. ELEMENTS
Contain only one kind of atom
Cannot be broken down into a
simpler type of matter by either
physical or chemical means
Atoms: Argon - Ar Molecules:
Nitrogen- N2
6. Charge Locatio
n
Mass
Protons 1 Nucleus 1
Neutron
s
No
Charge
Nucleus 1
Electron
s
-1 Electron
Cloud
No Mass
Atoms are made
of even tinier
things
Protons
Neutrons
Electrons
SUBATOMIC PARTICLES
7. MOLECULES
Sometimes atoms come together
to form Molecules
Molecules are a group of
Chemically combined atoms.
Molecules can have 2 atoms or
they may have hundreds of
atoms.
8. COMPOUNDS
A compound is a molecule BUT
there are formed when atoms of
different elements attach to one
anotherEx: WATER: O is
Red H is White
9. COMPOUNDS HAVE DIFFERENT PHYSICAL AND
CHEMICAL PROPERTIES THAN THE ELEMENTS
THEY ARE MADE OF.
S O D I U M ( N A )
Soft Silvery Metal
Melting point of 97.5 °C
Reacts Violently with
Water
C H L O R I N E ( C L )
Very Toxic
Boiling point 34°C
Gas is Yellow-Green
10. MIXTURES
Most materials are mixtures:
Can be made of elements, compounds, or both
Mixtures can be separated by physical means
Sand and Water
11.
12. TYPES OF MIXTURES
Heterogeneous
Different components can
be seen as individual
substances
Homogeneous
Have the same
composition throughout
Can also be known as a
Solution
13. SOLUTION
All components are of the same phase and
evenly distributed
EX: Sugar and Water
A liquid mixture in which the minor
component (the solute) is uniformly
distributed within the major component
(the solvent)
14.
15. Are all solutions
mixtures?
Yes all solutions
are mixtures
Are all mixtures
solutions?
No, some
mixtures
“parts” can
easily be
distinguished
LETS CHECK WHAT YOU KNOW
16. All mixtures are
defined as
heterogeneous
?
FALSE
As temperature
of a mixture
increases, one
part of the
mixture may
melt while the
other parts
remain solid.
TRUE
LETS CHECK WHAT YOU KNOW
