Xenon Element (Periodic Table)

Xenon

Xenon (Xe) is a chemical element of the periodic table, located in the group 18 and the period 5, and has the atomic number 54. It is a colorless, odorless, tasteless gas, whose name comes from the Greek word “xenos”, which means stranger. It is a member of the noble gas group.

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
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
104
Rf
105
Db
106
Sg
107
Bh
108
Hs
109
Mt
110
Ds
111
Rg
112
Cn
113
Nh
114
Fl
115
Mc
116
Lv
117
Ts
118
Og
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
71
Lu
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
103
Lr
– p block

FAQs on Xenon Element

Xenon
‣ What does xenon look like?

Appearance: colorless gas, exhibiting a blue glow when placed in an electric field
‣ Who discovered xenon? When was the element xenon discovered?

Discovery and first isolation: William Ramsay and Morris Travers (1898)
‣ Where is xenon on the periodic table?

Xenon Periodic Table

Location: Xenon is found in the eighteenth column of the periodic table below the krypton element.
‣ What is the atomic number of xenon?

Atomic number (Z): 54
‣ What is the symbol of xenon?

Symbol: Xe
Xenon atomic weight: 131.293
‣ What block does xenon belong to?

Block: p-block
‣ What group is xenon in on the periodic table?

Group: 18 (noble gases)
‣ What period is xenon in on the periodic table?

Period: 5
Xenon covalent radius: 140±4 pm
Xenon Van der Waals radius: 216 pm
‣ What is the melting point of xenon?

Melting point: 161.40 K (-111.75 °C, -169.15 °F)
‣ What is the boiling point of xenon?

Boiling point: 165.051 K (-108.099 °C, -162.578 °F)
Xenon critical point: 289.733 K, 5.842 MPa
Xenon triple point: 161.405 K, 81.77 kPa
‣ How many electron shells does xenon have?

Electrons per shell: 2, 8, 18, 18, 8
‣ What is the electron configuration of xenon?

Electron configuration: [Kr] 4d10 5s2 5p6
‣ What is the ionization energy of xenon?

Ionization energies:
1st: 1170.4 kJ/mol
2nd: 2046.4 kJ/mol
3rd: 3099.4 kJ/mol
‣ What phase is xenon normally found in?

Phase (at r.t): gas
‣ What is the density of xenon?

Density (at STP): 5.894 g/L
when liquid (at b.p): 2.942 g/cm3
Xenon magnetic ordering: diamagnetic
Xenon natural occurrence: primordial
‣ What is the oxidation state for xenon?

Oxidation state: 0, +2, +4, +6, +8
‣ What is the electronegativity of xenon?

Electronegativity: Pauling scale: 2.6
Xenon heat of fusion: 2.27 kJ/mol
Xenon heat of vaporization: 12.64 kJ/mol
Xenon molar heat capacity: 21.01 J/(mol K)
Xenon molar magnetic susceptibility: -43.9 × 10-6 cm3/mol (298 K)
Speed of sound in xenon:
gas: 178 m/s
liquid: 1090 m/s
Xenon crystal structure: face-centered cubic (fcc)
Thermal conductivity of xenon: 5.65 × 10-3 W/(m.K)
Xenon CAS number: 7440-63-3

‣ Xenon vapor pressure

Vapor pressure
P (Pa)1101001 k10 k100 k
at T (K)8392103117137165

‣ How many isotopes does xenon have?

Main isotopes of xenon
IsotopeAbundanceHalf-life (t1/2)Decay modeProduct
124Xe0.095 %1.8 × 1022 yεε124Te
125Xesyn16.9 hε125I
126Xe0.089 %stable (no decay seen)ββ
127Xesyn36.345 dε127I
128Xe1.910 %stable
129Xe26.401 %stable
130Xe4.071 %stable
131Xe21.232 %stable
132Xe26.909 %stable
133Xesyn5.247 dβ133Cs
134Xe10.436 %stable (no decay seen)ββ
135Xesyn9.14 hβ135Cs
136Xe8.857 %2.165 × 1021 yββ136Ba

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