1
H
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 1
D
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Chemical Elements

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Chemical Calculators | Atomic Collider Simulation
 2
He
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 3
Li
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 4
Be
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 5
B
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 6
C
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 7
N
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 8
O
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 9
F
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 10
Ne
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 11
Na
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 12
Mg
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 13
Al
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 14
Si
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 15
P
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 16
S
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 17
Cl
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 18
Ar
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 19
K
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 20
Ca
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 21
Sc
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 22
Ti
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 23
V
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 24
Cr
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 25
Mn
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 26
Fe
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 27
Co
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 28
Ni
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 29
Cu
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 30
Zn
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 31
Ga
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 32
Ge
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 33
As
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 34
Se
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 35
Br
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 36
Kr
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 37
Rb
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 38
Sr
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 39
Y
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 40
Zr
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 41
Nb
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 42
Mo
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 43
Tc
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 44
Ru
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 45
Rh
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 46
Pd
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 47
Ag
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 48
Cd
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 49
In
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 50
Sn
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 51
Sb
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 52
Te
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 53
I
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 54
Xe
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 55
Cs
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 56
Ba
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 57-71
La-Lu

 72
Hf
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 73
Ta
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 74
W
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 75
Re
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 76
Os
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 77
Ir
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 78
Pt
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 79
Au
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 80
Hg
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 81
Tl
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 82
Pb
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 83
Bi
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 84
Po
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 85
At
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 86
Rn
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 87
Fr
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 88
Ra
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 89-103
Ac-Lr

 104
Rf

 105
Db

 106
Sg

 107
Bh

 108
Hs

 109
Mt

 110
Ds

 111
Rg

 112
Cn

 113
Uut

 114
Fl

 115
Uup

 116
Lv

 117
Uus

 118
Uuo

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 57
La
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 58
Ce
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 59
Pr
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 60
Nd
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 61
Pm
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 62
Sm
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 63
Eu
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 64
Gd
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 65
Tb
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 66
Dy
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 67
Ho
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 68
Er
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 69
Tm
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 70
Yb
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 71
Lu
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Islands of Stability
 89
Ac
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 90
Th
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 91
Pa
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 92
U
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 93
Np
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 94
Pu
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 95
Am
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 96
Cm
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 97
Bk
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 98
Cf
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 99
Es
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 100
Fm
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 101
Md
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 102
No
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 103
Lr

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    100    

100 Fm Fermium

Actinoid, mass: 257 u, no stable and no natural isotopes.

Photo: U.S. Department of Energy, 1952, released as public domain. The explosion of the hydrogen bomb Ivy Mike.

Fermium

Fermium and einsteinium are produced in small amounts in explosions of hydrogen bombs, from the igniter plutonium and neutrons that are flying around. Fermium also can be made in labs, however the highly radioactive metal has no use outside of basic research. The most stable isotope has a half-life of 100 days. Fermium was named after Enrico Fermi, who had nothing to do with this element, but who was involved in the construction of the first atomic bomb. Fermium decays to californium.


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