Periodic
Table
|
Nobelium
|
Symbol
|
No
|
|
Atomic
Number
|
102
|
Relative
Atomic
Mass
12C
=
12.0000
|
[
259
]
259.1010
58(5)
min
Neutrons
157
|
|
Significant
Atomic
Mass
|
260
Neutrons
158
|
|
Atomic
Radius
pm
|
-
|
First
Ionisation
Energy
kJ
mol
-1
|
642
|
|
Ionisation
Energy
(eV)
|
6.6500
|
|
Electronegativity
|
1.3
|
|
Density
kg
m
-3
|
-
|
|
Molar
Volume
cm
3
|
-
|
Thermal
Conductivity
W
m
-1
K
-1
|
10
[300
K]
(est.)
|
|
Melting
Point
K
|
-
|
|
Boiling
Point
K
|
-
|
|
Number
of
Isotopes
|
14
|
|
Inner
+
outer
Shells
|
|
|
Inner
+
outer
Orbitals
|
|
|
Filling
Orbital
|
|
|
Ground
State
Electron
Configuration
|
|
|
|
Ground
State
Electron
Configuration
with
free
Orbitals (n=16)
|
|
|
|
|
Ground
State
Electron
Configuration
with
compressed
Orbitals
(n=162)
|
|
|
|
|
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
|
6
|
10
|
14
|
18
|
|
|
|
|
6
|
2
|
6
|
10
|
14
|
18
|
22
|
|
|
|
7
|
2
|
6
|
10
|
14
|
18
|
22
|
26
|
|
|
8
|
|
|
|
|
|
|
|
|
|
|
|
|
Term
Symbol
|
1S
0
|
|
Obsolete
Names
|
Unnilbium,
Unb
eka-ytterbium
|
|
Discovery
|
Discovered
by
A.
Ghiorso,
T.
Sikkeland,
G.T.
Seaborg
and
J.R.
Walton
(Berkeley,
USA)
|
|
Name
Derived
From
|
Named
after
Alfred
Nobel
(b.
Oct.
21,
1833,
Stockholm,
Sweden
/d.
Dec.
10,
1896,
San
Remo,
Italy)
|
Swedish
chemist,
engineer,
and
industrialist
who
invented
dynamite
and
other,
more
powerful
explosives
and
who
also
founded
the
Nobel
Prizes.
Alfred
Bernhard
Nobel
was
the
fourth
son
of
Immanuel
and
Caroline
Nobel.
Immanuel
was
an
inventor
and
engineer
who
had
married
Caroline
Andrietta
Ahlsell
in
1827.
The
couple
had
eight
children,
of
whom
only
Alfred
and
three
brothers
reached
adulthood.
Alfred
was
prone
to
illness
as
a
child,
but
he
enjoyed
a
close
relationship
with
his
mother
and
displayed
a
lively
intellectual
curiosity
from
an
early
age.
He
was
interested
in
explosives,
and
he
learned
the
fundamentals
of
engineering
from
his
father.
Immanuel,
meanwhile,
had
failed
at
various
business
ventures
until
moving
in
1837
to
St.
Petersburg
in
Russia,
where
he
prospered
as
a
manufacturer
of
explosive
mines
and
machine
tools.
The
Nobel
family
left
Stockholm
in
1842
to
join
the
father
in
St.
Petersburg.
Alfred's
newly
prosperous
parents
were
now
able
to
send
him
to
private
tutors,
and
he
proved
to
be
an
eager
pupil.
He
was
a
competent
chemist
by
age
16
and
was
fluent
in
English,
French,
German,
and
Russian,
as
well
as Swedish.
|
|
