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Iron

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Iron
Iron
Identification
Symbol
Fe
Block
D-Block
Group
Group 8
Period
Period 4
Atomic Information
Atomic Number
26
Atomic Radius
126 pm
Mass
55.85 Ar
Category
Metal
Standard state(298 K)
Solid
Electronic Configuration
[Ar] 3d6 4s2
Electronegativity (Pauling)
1.83
15.7 kJ mol‑1
First ionisation energy
762.5 kJ mol‑1
Physical Properties
Color
Metallic Gray
Melting Point
1811 K
Boiling Point
3134 K
Density of solid
7874 kg m-3
65%
Heat Properties
Enthalpy of fusion
203 kJ mol-1
Enthalpy of atomisation
415 kJ mol-1
Enthalpy of vaporisation
347 kJ mol-1

Iron is the twenty-sixth element in the periodic table according to its atomic number 26. It is a ferromagnetic substance which is strongly attracted by magnetic field.

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
Uut
114
Fl
115
Uup
116
Lv
117
Uus
118
Uuo


* 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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