1
Q
hydrogen
A
H
2
Q
helium
A
He
3
Q
Lithium
A
Li
4
Q
Beryllium
A
Be
5
Q
Boron
A
B
6
Q
Carbon
A
C
7
Q
Nitrogen
A
N
8
Q
Oxygen
A
O
9
Q
Fluorine
A
F
10
Q
Neon
A
Ne
11
Q
Sodium
A
Na
12
Q
Magnesium
A
Mg
13
Q
Aluminium
A
Al
14
Q
Silicon
A
Si
15
Q
Phosphorus
A
P
16
Q
Sulfur
A
S
17
Q
Chlorine
A
Cl
18
Q
Argon
A
Ar
19
Q
Potassium
A
K
20
Q
Calcium
A
Ca
21
Q
iron
A
Fe
22
Q
nickel
A
Ni
22
Q
Tin
A
Sn
22
Q
Zinc
A
Zn
23
Iodine
I
23
Copper
Cu
24
Bromine
Br
25
Lead
Pb
26
Mercury
Hg
27
Silver
Ag
27
Gold
Au
28
H
Hydrogen
29
He
Helium
30
Li
Lithium
31
Be
Berylium
32
B
Boron
33
O
Oxygen
33
C
Carbon
34
N
Nitrogen
35
F
Fluorine
36
Ne
Neon
37
Na
Sodium
38
Mg
Magnesium
39
Al
Aluminium
40
Si
Silicon
41
P
Phosphorus
42
S
Sulfur
43
Cl
Chlorine
44
Ar
Argon
45
K
Potassium
46
Ca
Calcium
47
Fe
Iron
48
Sn
Tin
48
Zn
Zinc
49
Ni
Nickel
50
I
Iodine
51
Cu
Copper
52
Br
Bromine
53
Hg
Mercury
53
Pb
Lead
54
Ag
Silver
55
Au
Gold
56
Main areas of science
deciding what to study, gathering data, interacting with scientific community, interacting with society
57
chemistry
the study of matter and the changes it undergoes
57
matter
anything that has both mass and volume
58
mass
the amount of atter in an object
59
volume
the amount of space an object occupies
60
intensive property + ex
does not depend on the size of the object (density/color)
61
extensive property + ex
depends on the size of the object (mass/volume)
62
sublimation
going directly from solid to gas
63
going directly from solid to gas
sublimation
64
deposition
going directly from gas to solid
65
macroscopic
large enough to be seen with the naked eye
65
going directly from gas to solid
deposition
66
atomic
invisible world of atoms, ions, and molecules that explains what happens at the macroscopic level
67
symbolic
language of chemistry used to represent macroscopic and atomic observations
68
metal properties
reactive, silver
69
metalloids
shares properties with both metals and nonmetals
70
nonmetals
do not conduct electricity
71
alkali metals on PT
far left column
72
far left group on PT
alkali metals
73
alkaline earth metals on PT
second group from the left
74
second group from the left on PT
alkaline earth metals
75
non metals on PT
to the right of the metalloids
76
to the right of metalloids on PT
non metals + H
77
halogens on PT
second group from the right
78
second group from the right on PT
halogens
79
noble gases on PT
group on the far right
80
group on the far right on PT
noble gases
81
transition metals on PT
groups 3-12
82
groups 3-12 on PT
transition metals
83
Diatomic elements
BrINClHOF
83
electrolysis
the process of using electric current to cause a chemical change in a substance
84
the word atom comes from
Greek word atomos that means cannot be divided
85
mass of a proton and neutron
1 atomic mass unit (AMU)
85
isoelectronic
having the same numbers of electrons or the same electronic structure
86
isotopes
different number of neutrons
87
atomic theory of matter
the scientific concept that matter is made of discrete, tiny particles called atoms
88
came up w atomic theory of matter
John Dalton
89
both ways to write an element
mass number over atomic number, next to element symbol : element name (dash) mass number
chem :(
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