Reviewer

4. - No definite shape
- Has definite
volume

7. The particles of
solids are held
together by strong
forces.

8. Since the particles are
closer to one another, the
attraction between
particles is stronger than
those in gases.

9. They move freely
because they are far
apart and there is
negligible attraction
between them.

11. - Light
- Heat
- Sound
- Other forms of energy

12. Lowest compressibility
of a solid is due to the
closeness of the
particles.

14. The particles are
packed closely
together in fixed
positions.

16. The particles are
closer to one another,
nudging one another
as they move.

18. Gases take the shape of
the container because the
particles are able to move
freely to all parts of the
container.

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30. Charge Mass
Electron -1
9.109 x
10^-29
Lightest
Proton +1
1.672 x
10^-24 Almost
same size
and mass
Neutron 0
1.675 x
10^-24

31. Proton and
Electron are
attracted to one
another.

32. Proton –
positively-charged
particle
(+)

33. Electron –
negatively-
charged particle
(-)

34. J. J. Thompson
– proposed the
plum pudding
model

35. Neutral atom
and
Isotopes

36. P100 WT-FAX 100 Wed 24 Oct 14.09.4
RULE #1
The number of protons in
a neutral atom is equal to
the atomic number.

37. P100 WT-FAX 100 Wed 24 Oct 14.09.4
RULE #2
The number of electrons in
a neutral atom is equal to
the number of protons.

38. P100 WT-FAX 100 Wed 24 Oct 14.09.4
RULE #3
The atomic mass is equal
to the sum of the number
of protons and neutrons.

39. P100 WT-FAX 100 Wed 24 Oct 14.09.4
RULE #4
The number of neutrons is
equal to the difference
between the atomic mass
and protons.

40. Neutral Atom
Examples p e n AN AM
Iodine 53 53 74 53 127
Cobalt 27 27 31 27 58

41. Isotopes Example
mass
notation
atomic
notation
# of
p+
# of
e-
# of
no
C-11 11C 6 6 5
C-12 12C 6 6 6
C-13 13C 6 6 7
C-14 14C 6 6 8

47. INCREASING REACTIVITY
INCREASING
REACTIVITY