Mendeleev's Periodic Table > Xe - Xenon

Xe - Xenon

Xenon from Greek's word for stranger, is a rare gas that was extracted from the atmosphere (along with neon, krypton and radon.) by William Ramsey and M. W. Travers in 1898. Xenon is not an inert element - a hydrate, oxide and several fluorides have been prepared. Xenon is a "noble" or "inert" gas present in the atmosphere to a small extent. Metallic xenon is produced by applying several hundred kilobars of pressure. Xenon in a vacuum tube produces a blue glow when excited by an electrical discharge and finds use in strobe lamps. It is an odourless, colourless, inert gas.

Atomic number	-	54		Density	g/L	5	.86
Atomic weight	u	131	.3	Melting point	K	161	.36
Bonding radius	A	1	.31	Boiling point	K	165	.03
Atomic radius	A	1	.24	Heat of vaporization	kJ/mol	12	.636
Ionization Potential	V	12	.13	Heat of fusion	kJ/mol	2	.297
Electronegativity	-	-		Specific heat	J/gK	0	.158
The oxide is a weak acid.				Crystal are face centered cubic.
Electron config. : [Kr] 4d¹⁰ 5s² 5p⁶

Isotopes of Xe (Xenon):

MASS abundancy Halflife Particle, Energy Decay Product(s) Isotopic Mass	110 a,3.886 MeV Te-106 109.94449	111 0.74 sec a/EC,3.720 Te-107/I-111 110.94159	112 2.7 sec a/EC,7.200 Te-108/I-112 111.93566	113 2.74 sec a/EC/ECp,9.060 Te-109/I-113/Te-112 112.93337
MASS abundancy Halflife Particle, Energy Decay Product(s) Isotopic Mass	114 10.0 sec EC,5.900 MeV I-114 113.92814	115 18 sec EC/ECp,8.000 I-115/Te-114 114.92652	116 59 sec EC,4.660 MeV I-116 115.92172	117 61 sec EC/ECp,6.440 I-117/Te-116 116.92056
MASS abundancy Halflife Particle, Energy Decay Product(s) Isotopic Mass	118 3.8 min EC,2.900 MeV I-118 117.91658	119 5.8 min EC,5.000 MeV I-119 118.91555	120 40 min EC,1.960 MeV I-120 119.91216	121 40.1 min EC,3.730 MeV I-121 120.91137
MASS abundancy Halflife Particle, Energy Decay Product(s) Isotopic Mass	122 20.1 hr EC,4.234 MeV I-122 121.90856	123 2.08 hr EC,2.676 MeV I-123 122.90847	124 0.10% Stable 123.90589	125 16.9 hr EC,1.652 MeV I-125 124.90639
MASS abundancy Halflife Particle, Energy Decay Product(s) Isotopic Mass	126 0.09% Stable 125.90426	127 36.4 da EC,1.581 MeV I-127 126.90517	128 1.91% Stable 127.90353	129 26.4% Stable 128.90477
MASS abundancy Halflife Particle, Energy Decay Product(s) Isotopic Mass	130 4.1% Stable 129.90350	131 21.2% Stable 130.90508	132 26.9% Stable 131.90415	133 5.243 da B-,1.634 MeV Cs-133 132.90590
MASS abundancy Halflife Particle, Energy Decay Product(s) Isotopic Mass	134 10.4% Stable 133.90539	135 9.14 hr B-,1.151 MeV Cs-135 134.90720	136 8.9% 9.3E+19 yr 2B-,7.570 MeV Ba-136 135.90722	137 3.818 min B-,4.172 MeV Cs-137 136.91156
MASS abundancy Halflife Particle, Energy Decay Product(s) Isotopic Mass	138 14.08 min B-,2.770 MeV Cs-138 137.91398	139 39.68 sec B-,5.057 MeV Cs-139 138.91878	140 13.60 sec B-,4.060 MeV Cs-140 139.92163	141 1.73 sec B-/B-n,6.150 Cs-141/Cs-140 140.92665
MASS abundancy Halflife Particle, Energy Decay Product(s) Isotopic Mass	142 1.24 sec B-/B-n,5.040 Cs-142/Cs-141 141.92970	143 0.30 sec B-,7.310 MeV Cs-143 142.93515	144 1.15 sec B-,6.100 MeV Cs-144 143.93848	145 0.9 sec B-/B-n,6.100 Cs-145/Cs-144 145.0

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