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Silicon
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Identification
Symbol
Si
Block
P-Block
Group
14
Period
3
Atomic Information
Atomic Number
14
Atomic Radius
111 pm
Mass
28.085 Ar
Category
Metalloid
Standard state(298 K)
Solid
Electronic Configuration
[Ne] 3s2 3p2
Electronegativity (Pauling)
1.90
133.6 kJ/mol
First ionisation energy
786.5 kJ/mol
Physical Properties
Color
Gray
Melting Point
1414oC
Boiling Point
3265oC
Density of solid
2.33g/cm3
Unknown
Heat Properties
Enthalpy of fusion
39.6 kJ/mol
Enthalpy of atomisation
456 kJ/mol
Enthalpy of vaporisation
359 kJ/mol

Silicon is the fourteenth element in the periodic table according to its atomic number 14.

Periodic Table

1
H
2
He
3
Li
4
Be
5
B
6
C
7
N
8
O
9
F
10
Ne
11
Na
12
Mg
13
Al
14
Si
15
P
16
S
17
Cl
18
Ar
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
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
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
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
119
Uue
120
Ubn
*** 158
Ups
159
Upo
160
Upe
161
Uhn


* 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
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