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samarium-139m
isotope of samarium
Sm-139m
139mSm
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Statements
instance of
isotope of samarium
0 references
nuclear isomer
0 references
subclass of
samarium
0 references
atomic number
62
0 references
neutron number
77
0 references
parity quantum number
−1
1 reference
stated in
NuDat
retrieved
23 June 2016
edition number
2.6
reference URL
http://www.nndc.bnl.gov/nudat2/reCenter.jsp?n=77&z=62
spin quantum number
5.5
1 reference
stated in
NuDat
retrieved
23 June 2016
edition number
2.6
reference URL
http://www.nndc.bnl.gov/nudat2/reCenter.jsp?n=77&z=62
decays to
promethium-139
decay mode
positron emission
0 references
samarium-139
decay mode
isomeric transition
proportion
0.937±0
1 reference
edition number
2.6
reference URL
http://www.nndc.bnl.gov/nudat2/reCenter.jsp?n=77&z=62
retrieved
23 June 2016
stated in
NuDat
promethium-139
decay mode
electron capture
proportion
0.063±0
1 reference
edition number
2.6
reference URL
http://www.nndc.bnl.gov/nudat2/reCenter.jsp?n=77&z=62
retrieved
23 June 2016
stated in
NuDat
half-life
10.7±0.6000000000000001
second
uncertainty corresponds to
standard deviation
1 reference
edition number
2.6
stated in
NuDat
retrieved
23 June 2016
reference URL
http://www.nndc.bnl.gov/nudat2/reCenter.jsp?n=77&z=62
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