Periodic Chart Of The Elements - Essential Elements For Living Things
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1I A
Periodic Chart of the Elements
VIII A
1
Hydrogen
H
Semiconductors
2
He
(also known as metalloids)
Hydrogen
1.007 94
essential elements for living things
Metals
Helium
4.002 602
Alkali metals
II A
III A
IV A
V A
VI A
VII A
*CHONPS
Alkaline-earth metals
3
4
5
6
7
8
9
10
Transition metals
Li
Be
B
C
N
O
F
Ne
Other metals
Lithium
Beryllium
Boron
Carbon
Nitrogen
Oxygen
Fluorine
Neon
6.941
9.012 182
10.811
12.0107
14.0067
15.9994
18.998 4032
20.1797
Nonmetals
Halogens
11
12
13
14
15
16
17
18
Noble gases
Na
Mg
Al
Si
P
S
Cl
Ar
Other nonmetals
Sodium
Magnesium
Aluminum
Silicon
Phosphorus
Sulfur
Chlorine
Argon
22.989 770
24.3050
26.981 538
28.0855
30.973 761
32.065
35.453
39.948
III B
IV B
V B
VI B
VII B
VIII B
VIII B
VIII B
I B
II B
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
K
Ca
Sc
Ti
V
Cr
Mn
Fe
Co
Ni
Cu
Zn
Ga
Ge
As
Se
Br
Kr
Potassium
Calcium
Scandium
Titanium
Vanadium
Chromium
Manganese
Iron
Cobalt
Nickel
Copper
Zinc
Gallium
Germanium
Arsenic
Selenium
Bromine
Krypton
39.0983
40.078
44.955 910
47.867
50.9415
51.9961
54.938 049
55.845
58.933 200
58.6934
63.546
65.409
69.723
72.64
74.921 60
78.96
79.904
83.798
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