Periodic
Table
|
Antimony
|
Symbol
|
Sb
|
|
Atomic
Number
|
51
|
Relative
Atomic
Mass
12C
=
12.0000
|
121.760
(1)
[Since
1993]
|
|
Atomic
Radius
pm
|
141
|
First
Ionisation
Energy
kJ
mol
-1
|
833.7
|
|
Ionisation
Energy
(eV)
|
8,6084
|
|
Electronegativity
|
2.05
|
Density
kg
m
-3
|
6691
[293
K]
6483
[m.p.]
|
|
Molar
Volume
cm
3
|
18.20
|
Thermal
Conductivity
W
m
-1
K
-1
|
24.3
[300
K]
|
|
Melting
Point
K
|
903.89
|
|
Boiling
Point
K
|
1908
|
|
Number
of
Isotopes
|
40
|
|
Isotope
Atomic
mass/u
Mole
fraction
|
121Sb
120.903
8222(26)
0.5721(5)
123Sb
122.904
2160(22)
0.4279(5)
|
|
Inner
+
outer
Shells
|
|
|
Inner
+
outer
Orbitals
|
|
|
Filling
Orbital
|
|
Ground
State
Electron
Configuration
|
|
Ground
State
Electron
Configuration
with
free
Orbitals (n=3)
|
|
Ground
State
Electron
Configuration
with
compressed
Orbitals (n=56)
|
|
|
|
|
Singularity
|
|
|
|
|
|
s
|
p
|
d
|
f
|
g
|
h
|
i
|
j
|
|
1
|
2
|
|
|
|
|
|
|
|
|
2
|
2
|
6
|
|
|
|
|
|
|
|
3
|
2
|
6
|
10
|
|
|
|
|
|
|
4
|
2
|
6
|
10
|
14
|
|
|
|
|
|
5
|
2
|
3
|
3
|
10
|
14
|
18
|
|
|
|
|
6
|
|
|
|
|
|
|
|
|
|
7
|
|
|
|
|
|
|
|
|
|
8
|
|
|
|
|
|
|
|
|
|
|
|
|
Term
Symbol
|
4S
3/2
|
|
Discovery
|
Known
to
ancients
|
|
Name
Derived
From
|
The
name
derives
from
the
Greek,
anti
+
monos
for
"not
alone
or
not
one"
because
it
was
found
in
many
compounds.
The
chemical
symbol,
Sb,
comes
from
stibium,
which
is
derived
from
the
Greek
stibi
for
"mark"
because
it
was
used
for
blackening
eyebrows
and
eyelashes.
The
minerals
stibnite
(Sb2S3)
and
stibine
(Sb2H3)
are
two
of
more
than
100
mineral
species,
which
were
known
in
the
ancient
world.
|
|
![[Picture]](../images/aglarule.gif){kind=small}
