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curium
XDict
n
. 鋦
PyDict
鋦
WordNet
(
r
)
3
.
0
(
2006
) (
WordNet
)
curium
n
1
:
a
radioactive
transuranic
metallic
element
;
produced
by
bombarding
plutonium
with
helium
nuclei
[
synonym
: {
curium
},
{
Cm
}, {
atomic
number
96
}]
The
Collaborative
International
Dictionary
of
English
v
.
0
.
48
(
gcide
)
curium
\
curium
\
n
. [
after
Pierre
and
Marie
Curie
.]
a
radioactive
transuranic
element
of
atomic
number
96
,
having
an
atomic
weight
of
247
for
its
most
stable
isotope
(
half
-
life
1
.
6
x
10
^{
7
}
years
).
The
chemical
symbol
is
Cm
.
Note
:
It
was
first
prepared
in
1944
by
helium
-
ion
bombardment
of
plutonium
in
a
cyclotron
by
Glenn
Seaborg
and
colleagues
in
California
.
It
has
never
been
detected
in
nature
,
though
minute
quantities
may
exist
in
uranium
deposits
as
a
consequence
of
the
neutron
flux
there
.
Syn
:
Cm
,
atomic
number
96
.
[
WordNet
1
.
5
]
The
Elements
Database
(
element
)
curium
Symbol
:
Cm
Atomic
number
:
96
Atomic
weight
: (
247
)
Radioactive
metallic
transuranic
element
.
Belongs
to
actinoid
series
.
Nine
known
isotopes
,
Cm
-
247
has
a
half
-
life
of
1
.
64
*
10
^
7
years
.
First
identified
by
Glenn
T
.
Seaborg
and
associates
in
1944
,
first
produced
by
L
.
B
.
Werner
and
I
.
Perlman
in
1947
by
bombarding
americium
-
241
with
{
neutron
}
s
.
Named
for
Marie
Curie
.
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