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 1
H
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 1
D
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Chemical Elements

A Virtual Museum

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Particle Zoo | Chemical Calculators | Atomic Collider Simulation
 2
He
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 3
Li
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Be
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B
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C
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N
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O
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F
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Ne
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Na
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Mg
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Al
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Si
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P
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S
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Cl
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Ar
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K
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Ca
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Sc
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Ti
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V
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Cr
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Mn
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Fe
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Co
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Ni
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Cu
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Zn
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Ga
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Ge
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As
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Se
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Br
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Kr
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Rb
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Sr
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Y
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Zr
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Nb
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Mo
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Tc
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Ru
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Rh
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Pd
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Ag
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Cd
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In
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Sn
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Sb
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Te
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I
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Xe
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 55
Cs
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Ba
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 57-71
La-Lu

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Hf
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Ta
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 74
W
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 75
Re
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Os
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Ir
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Pt
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Au
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Hg
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Tl
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Pb
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Bi
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Po
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At
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Rn
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Fr
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Ra
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 89-103
Ac-Lr

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Rf

 105
Db

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Sg

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Bh

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Hs

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Mt

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Ds

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Rg

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Cn

 113
Nh

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Fl

 115
Mc

 116
Lv

 117
Ts

 118
Og

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La
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 58
Ce
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Pr
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Nd
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Pm
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Sm
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Eu
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Gd
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Tb
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Dy
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Ho
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Er
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Tm
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Yb
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Lu
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Islands of Stability
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Ac
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Th
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Pa
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U
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Np
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Pu
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Am
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Cm
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Bk
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Cf
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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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