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Nobelium is a synthetic element, which means that it is too unstable to be found naturally on earth. It’s most stable isotope, nobelium 259, has a half life of 58 minutes. It decays into fermium-255 through alpha decay or into mendelevium-259.

 

            Electron configuration: 1s2 2s2p6 3s2p6d10 4s2p6d10f14 5s2p6d10f14 6s2p6 7s2

        Date of Discovery: 1957

        Discoverer: Nobel Institute for Physics in Stockholm, Sweden

        Name Origin: After Alfred Nobel

        Obtained From: Man-made

          Oxidation States: +3, +2

        Melting point:  unknown

        Boiling point: 827 degrees C

        Atomic mass: 259

At    Atomic number: 102

        Density: unknown

 

Due to its extremely short half life, nobelium has no known uses besides scientific research. There are also no images of the element because of its short half life; however, it is probably metallic or silvery white in appearance because of the appearance thorium and uranium (the only two naturally found actinides). The density and melting point are also unknown because of nobelium’s short half life.

Reaction tendencies:

Although Nobelium doesn't really get mixed with other elements in typical chemical reactions, it does decay through other elements like this:

\, ^{244}_{96}\mathrm{Cm} + \, ^{12}_{6}\mathrm{C} \to \, ^{256}_{102}\mathrm{No}^{*}\to \,^{252}_{102}\mathrm{No} + 4 \,^{1}_{0}\mathrm{n}

 

\, ^{238}_{92}\mathrm{U} + \, ^{22}_{10}\mathrm{Ne} \to \, ^{260}_{102}\mathrm{No}^{*}\to \,^{254}_{102}\mathrm{No} + 6 \,^{1}_{0}\mathrm{n}