Element Nobelium

Nobelium ElementIt is named in honor of Alfred Nobel, the inventor of dynamite and benefactor of science.
A radioactive metal, it is the tenth transuranic element and is the penultimate member of the actinide series
Nobelium is a synthetic chemical element with the symbol No and atomic number 102
In the periodic table, nobelium is located to the right of the actinide mendelevium, to the left of the actinide lawrencium, and below the lanthanide ytterbium.
Nobelium metal has not yet been prepared in bulk quantities, and bulk preparation is currently impossible.
Nevertheless, a number of predictions and some preliminary experimental results have been done regarding its properties.

Names and Identifiers

Chemical Formula:No
CAS:10028-14-5
Molecular Weight:259.00000g/mol
EC Number :n/a
MDL Number:n/a
Color:unknown (presumably metallic/ silvery white/ gray)
Other Names:Nobelio
PubChem CID:24822
IUPAC Name:Nobelium
Inchl:InChI=1S/No
InChI Key:ORQBXQOJMQIAOY-UHFFFAOYSA-N
Canonical SMILES:[No]
ICSC Number:n/a

Physical & Chemical Properties

Phase:Solid
Density:9.94 g/cm³
Boiling Point:1100 K ​(827 °C, ​1521 °F)
Melting Point:n/a
Molecular Formula:No
Flash Point:n/a
Exact Mass:259.10100

Twelve isotopes of nobelium are known, with mass numbers 250–260 and 262; all are radioactive.
Additionally, nuclear isomers are known for mass numbers 251, 253, and 254

Radiosotope data

IsotopeMass/DaHalf-lifeMode of decayNuclear spinNuclear magnetic moment
253No253.09071.7 mα to 249Fm; EC to 253Md9/2
254No254.090955 sα to 250Fm; EC to 254Md; SF0
255No255.09323.1 mα to 251Fm; EC to 255Md1/2
256No256.09432.9 sα to 252Fm; AS0
257No257.096825 sα to 253Fm7/2
258No258.09830.0012 sα to 254Fm; SF0
259No259.100931 (12)58 mα to 255Fm; EC to 259Md; SF9/2

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