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BEST PERIODIC TABLE FOR LOWER SCHOOL

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The Periodic Table of Elements
1
6
H
HYDROGEN
3
1
Li
LITHIUM
11
7
4
Be
12
C
19
23
K
POTASSIUM
37
39
Rb
RUBIDIUM
55
85
Cs
CESIUM
87
133
Fr
FRANCIUM
223
Atomic Weight = Number of Protons + Number of Neutrons*
METALS
MAGNESIUM
20
24
Ca
CALCIUM
38
40
Sr
STRONTIUM
56
88
Ba
21
Sc
SCANDIUM
39
45
Y
YTTRIUM
89
BARIUM
88
137
Ra
RADIUM
226
KEY
= Solid at room temperature
= Liquid at room temperature
= Gas at room temperature
= Radioactive
= Artificially Made
22
Ti
TITANIUM
40
48
Zr
ZIRCONIUM
72
91
Hf
HAFNIUM
178
104
Rf
RUTHERFORDIUM
267
57
La
LANTHANUM
139
89
Ac
ACTINIUM
227
23
V
24
25
26
Cr Mn Fe
VANADIUM
CHROMIUM MANGANESE
41
42
51
52
43
55
Nb Mo Tc
NIOBIUM
73
93
Ta
TANTALUM
181
105
Db
DUBNIUM
268
58
Ce
CERIUM
140
90
Th
THORIUM
232
5
Chemical Name
12
9
Na Mg
SODIUM
Chemical Symbol
CARBON
BERYLLIUM
2
Atomic Number = Number of Protons = Number of Electrons
IRON
56
44
74
96
W
TUNGSTEN
184
106
Sg
SEABORGIUM
271
59
Pr
75
98
Re
RHENIUM
186
107
Bh
BOHRIUM
272
60
76
101
Os
OSMIUM
190
108
Al
27
Co
COBALT
45
59
RHODIUM
77
103
Ir
IRIDIUM
192
109
Hs Mt
HASSIUM
277
61
91
Pa
PROTACTINIUM
231
28
Ni
NICKEL
46
59
PALLADIUM
78
106
Pt
PLATINUM
195
110
Ds
29
30
31
27
C
CARBON
14
12
Si
SILICON
32
28
Cu Zn Ga Ge
COPPER
47
64
ZINC
48
65
Ag Cd
SILVER
79
108
CADMIUM
80
112
Au Hg
GOLD
197
111
MERCURY
201
112
GALLIUM
49
70
In
INDIUM
81
115
Tl
THALLIUM
204
113
GERMANIUM
50
73
Sn
TIN
82
119
Pb
LEAD
207
114
92
276
62
U
URANIUM
238
145
93
281
63
150
94
280
64
EUROPIUM
152
95
285
65
GADOLINIUM
157
96
15
14
P
PHOSPHORUS
33
31
As
ARSENIC
51
75
Sb
O
OXYGEN
16
16
S
SULFUR
34
32
Se
SELENIUM
52
79
Te
ANTIMONY TELLURIUM
83
122
Bi
BISMUTH
209
115
289
284
66
TERBIUM
159
97
Np Pu Am Cm Bk
NEPTUNIUM PLUTONIUM AMERICIUM
237
N
NITROGEN
8
84
128
Po
POLONIUM
209
116
9
F
FLUORINE
17
19
Cl
CHLORINE
35
35
Br
BROMINE
53
80
I
IODINE
85
127
At
ASTATINE
210
117
4
10
Ne
NEON
18
20
Ar
ARGON
36
40
Kr
KRYPTON
54
84
Xe
XENON
86
131
Rn
RADON
222
118
Rg Uub Uut Uuq Uup Uuh Uus Uuo
67
Nd Pm Sm Eu Gd Tb Dy Ho
144
7
MEITNERIUM DARMSTADTIUM ROENTGENIUM UNUNBIUM UNUNTRIUM UNUNQUADIUM UNUNPENTIUM UNUNHEXIUM UNUNSEPTIUM UNUNOCTIUM
PRASEODYMIUM NEODYMIUM PROMETHIUM SAMARIUM
141
13
11
ALUMINUM
Ru Rh Pd
MOLYBDENUM TECHNETIUM RUTHENIUM
B
BORON
NON-METALS
6
He
HELIUM
244
243
CURIUM
247
DYSPROSIUM
163
98
Cf
HOLMIUM
165
99
251
68
291
69
70
71
ERBIUM
167
THULIUM
169
101
YTTERBIUM
173
102
Es Fm Md No
252
294
NOT YET
OBSERVED
Er Tm Yb Lu
100
BERKELIUM CALIFORNIUM EINSTEINIUM
247
288
FERMIUM
257
MENDELEVIUM NOBELIUM
258
259
LUTETIUM
175
103
Lr
LAWRENCIUM
262
* The atomic weights listed on this Table of Elements have been rounded to the nearest whole number. As a result, this chart actually displays the mass number of a specific isotope for each element. An element's complete, unrounded atomic
weight can be found on the It's Elemental web site: http://education.jlab.org/itselemental/index.html
http://education.jlab.org/
Last revised on October 15, 2006
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