Transcript Day 20 Atomic Theory I - WaylandHighSchoolChemistry

Atomic Theory
Agenda
New
elements
Grade tests
Guided reading of chp 4
Song about Atomic Theory
Notes on Atomic Theory
IA
IIA
IIIB
IVB
VB
VIB
VIIB
1
2
3
4
5
6
7
VIII
B
8
9
10
IB
IIB
IIIA
IVA
VA
VIA
VIIA
VIII
A
11
12
13
14
15
16
17
18
1
3
2
4
5
6
7
8
9
10
13
14
15
16
17
18
The Periodic Table of the Elements
11
12
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
103
104
105
106
107
108
109
110
111
112
57
58
59
60
61
62
63
64
65
66
67
68
69
70
89
90
91
92
93
94
95
96
97
98
99
100
101
102
Grading PT
 Do
not share who’s PT you are grading.
 Sign your name to bottom so I know who
to go after if not corrected properly.

H
 Li
 Na
 K





Be
Mg
Ca
Sr
Ba

B
 Al
 Ga





C
Si
Ge
Sn
Pb

N
 P
 As

O
 S
 Se

F
 Cl
 Br
 I






He
Ne
Ar
Kr
Xe
Rn












Al
Ar
As
Ba
Be
B
Br
Cd
Ca
C
Cl
F












Ga
Ge
Au
He
H
I
Kr
Pb
Li
Mg
Hg
Ne












N
O
P
K
Se
Si
Ag
Na
Sr
S
Sn
Xe
Test Grading
 Do
not share who’s test you are grading.
 Sign your name to bottom so I know who
to go after if not corrected properly.
 Write the correct answer
Guided Read
 Read
with table partner in 6” voice.
 Complete study guide in COMPLETE
SENTENCES!

Write in your own words; it will help you to
remember more because you have to think
about it!
Song Time
Atomic Theory Polka
 Dalton,
Thomson, Rutherford and Bohr.
Schrödinger and Heisenberg, and many,
many more. Used their brains to venture
in the realm of inner space and found the
world of the atom was a weird and
wondrous place.
 Dalton
did experiments and said, “I think
it’s clear, atoms are tiny indestructible
spheres.”
 Thomson
worked with cathode rays and
said, “I disagree. A plum-pudding model
makes much more sense to me.”
A
new chapter in atomic theory started to
unfold when Rutherford played around
with atoms made of gold. When a few of
his alpha particles came bounding back,
he hypothesized a nucleus had knocked
them off the track.
 Dalton,
Thomson, Rutherford and Bohr.
Schrödinger and Heisenberg, and many,
many more. Used their brains to venture
in the realm of inner space and found the
world of the atom was a weird and
wondrous place.
 Bohr
saw spectral lines for hydrogen and
said, “It seems to me.. Electrons move in
orbits with specific energies.”
electron
neutron
proton
 Heisenberg
said, “Forget it, there’s no way
to know the orbit or a path, where the
electron’s gonna go.”
 Schrödinger
used lots and lots of fancy
mathematics, and made a model of the
atom based on quantum mechanics. It
has orbitals and those are based on
probability. The atom is a fuzzy blob of
pure uncertainty.
 Dalton,
Thomson, Rutherford and Bohr.
Schrödinger and Heisenberg, and many,
many more. Used their brains to venture
in the realm of inner space and found the
world of the atom was a weird and
wondrous place.
Atomic Theory
Date
Democritus
 Date
460-370 B.C.
 Democritus was a philosopher; did no
research
 He thought that everything was made
up of tiny round things called atoms.
 Atoms are the building blocks of life.
John Dalton
• 1787 – 1844
• Wanted to learn in what ratios different
elements combine in chemical reactions.
• Through experimentation devised his
atomic theory.
Dalton’s Atomic Theory
1.
2.
3.
4.
Elements are composed of submicroscopic
indivisible particles called atoms.
All atoms of a given element are identical.
Atoms of different elements are different from
one another.
Atoms of one element can mix or chemically
combine with atoms of other elements,
creating compounds with simple whole-number
ratios.
Chemical reactions occur when atoms
are separated, joined or rearrange.
Homework
 Last
element quiz Friday!