Xe Xenon Index (original) (raw)

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Xenon (Xe) Element Properties

Atomic Mass 131.29
Atomic Number 54
Name Origins Greek, xenos = "stranger."
Year Discovered 1898
Discovery Credits Sir William Ramsay and M. W. Travers at London, UK.
Remarks Colorless, odorless gas obtained from liquid air. Inert toward most other chemicals but reacts with fluorine gas to form xenon fluorides. Oxides, acids and salt known. Little used outside research. Used to fill the bulbs of zenon flashlights.
References Emsley, J., 1991; THE ELEMENTS : Sec. Ed., Clarendon Press, Oxford, 251 p.
See Also WebElements,ChemiCool

Naturally Occurring Isotopes

Symbol Isotope Mass Isotope Nuclide Number Isotope Number Natural Abundance Half-life Half-life Units Decay Mode Decay Mode MeV Decay Mode %
Xe 123.905894 124 54 0.1000% Stable
Xe 125.904281 126 54 0.0900% Stable
Xe 126.905182 127 54 00.0000% 36.3 Days EC 0.66 100.00%
Xe 127.903531 128 54 1.9100% Stable
Xe 128.90478 129 54 26.4000% Stable
Xe 129.903509 130 54 4.1000% Stable
Xe 130.905072 131 54 21.2000% Stable
Xe 131.904144 132 54 26.9000% Stable

There are no Minerals containing Xe ( Xenon )

Group 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
Period
1 1 H 2 He
2 3 Li 4 Be 5 B 6 C 7 N 8 O 9 F 10 Ne
3 11 Na 12 Mg 13 Al 14 Si 15 P 16 S 17 Cl 18 Ar
4 19 K 20 Ca 21 Sc 22 Ti 23 V 24 Cr 25 Mn 26 Fe 27 Co 28 Ni 29 Cu 30 Zn 31 Ga 32 Ge 33 As 34 Se 35 Br 36 Kr
5 37 Rb 38 Sr 39 Y 40 Zr 41 Nb 42 Mo 43 Tc 44 Ru 45 Rh 46 Pd 47 Ag 48 Cd 49 In 50 Sn 51 Sb 52 Te 53 I 54 Xe
6 55 Cs 56 Ba * 71 Lu 72 Hf 73 Ta 74 W 75 Re 76 Os 77 Ir 78 Pt 79 Au 80 Hg 81 Tl 82 Pb 83 Bi 84 Po 85 At 86 Rn
7 87 Fr 88 Ra ** 103 Lr 104 Rf 105 Db 106 Sg 107 Bh 108 Hs 109 Mt 110 Ds
-
*Lanthanides * 57 La 58 Ce 59 Pr 60 Nd 61 Pm 62 Sm 63 Eu 64 Gd 65 Tb 66 Dy 67 Ho 68 Er 69 Tm 70 Yb
**Actinides ** 89 Ac 90 Th 91 Pa 92 U 93 Np 94 Pu 95 Am 96 Cm 97 Bk 98 Cf 99 Es 100 Fm 101 Md 102 No