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Selenium

Description & History
se·le·ni·um (1818):
a nonmetallic element that resembles sulfur and tellurium chemically, is obtained chiefly as a by-product in copper refining, and is a photoconductive semiconductor in its crystalline form
Element

SymbolSe
Z 34
Atomic Weight 78.9599991
Density 4.78999996
Edge Energies
(keV)
K 12.658
L1 1.653
L2 1.477
L3 1.43599999
M 0.231999993
K-alpha 11.2209997
K-beta 12.4949999
L-alpha 1.41900003
L-beta 1.37899995
Edge jumps

K 6.88230848
L1 1.1582489
L2 1.40999997
L3 4.58699989
Fluorescence
yield
K 0.588999987
L1 0.00319999992
L2 0.231999993
L3 11.2209997

Alphabetical List of Elements

  Actinium(Ac) Europium(Eu) Neodymium(Nd) Silicon(Si)
  Aluminum(Al) Fermium(Fm) Neon(Ne) Silver(Ag)
  Americium(Am) Fluorine(F) Neptunium(Np) Sodium(Na)
  Antimony(Sb) Francium(Fr) Nickel(Ni) Strontium(Sr)
  Argon(Ar) Gadolinium(Gd) Niobium(Nb) Sulfur(S)
  Arsenic(As) Gallium(Ga) Nitrogen(N) Tantalum(Ta)
  Astatine(At) Germanium(Ge) Nobelium(No) Technetium(Tc)
  Barium(Ba) Gold(Au) Osmium(Os) Tellurium(Te)
  Berkelium(Bk) Hafnium(Hf) Oxygen(O) Terbium(Tb)
  Beryllium(Be) Hassium(Hs) Palladium(Pd) Thallium(Tl)
  Bismuth(Bi) Helium(He) Phosphorus(P) Thorium(Th)
  Bohrium(Bh) Holmium(Ho) Platinum(Pt) Thulium(Tm)
  Boron(B) Hydrogen(H) Plutonium(Pu) Tin(Sn)
  Bromine(Br) Indium(In) Polonium(Po) Titanium(Ti)
  Cadmium(Cd) Iodine(I) Potassium(K) Tungsten(W)
  Calcium(Ca) Iridium(Ir) Praseodymium(Pr) Ununbium(Uub)
  Californium(Cf) Iron(Fe) Promethium(Pm) Ununhexium(Uuh)
  Carbon(C) Krypton(Kr) Protactinium(Pa) Ununnilium(Uun)
  Cerium(Ce) Lanthanum(La) Radium(Ra) Ununoctium(Uuo)
  Cesium(Cs) Lawrencium(Lr) Radon(Rn) Ununquadium(Uuq)
  Chlorine(Cl) Lead(Pb) Rhenium(Re) Unununium(Uuu)
  Chromium(Cr) Lithium(Li) Rhodium(Rh) Uranium(U)
  Cobalt(Co) Lutetium(Lu) Rubidium(Rb) Vanadium(V)
  Copper(Cu) Magnesium(Mg) Ruthenium(Ru) Xenon(Xe)
  Curium(Cm) Manganese(Mn) Rutherfordium(Rf) Ytterbium(Yb)
  Dubnium(Db) Meitnerium(Mt) Samarium(Sm) Yttrium(Y)
  Dysprosium(Dy) Mendelevium(Md) Scandium(Sc) Zinc(Zn)
  Einsteinium(Es) Mercury(Hg) Seaborgium(Sg) Zirconium(Zr)
  Erbium(Er) Molybdenum(Mo) Selenium(Se)


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