FOIA case 105997: Intellipedia entries on Moscovium, Element 115 and Bob Lazar

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(U) Ununpentium
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Ununpentium is the temporary name of a synthetic superheavy
element in the periodic table that has the temporary symbol
Uup and has the atomic number liS. Multiple isotopes have
been made by a fusion of calcium and americium (Uup-288
with the most neutrons). It can be referred to as eka-bismuth.
Element liS also falls in the center of the theoretical island of
stability. Although no stable isotopes have yet been found,
conventional models predict that if stable isotopes of element
lIS can be produced, they will most likely need the "magic
number" of 184 neutrons, which would be Uup-299. The
currently fabricated isotopes only had at most 173 neutrons
(Uup-288).
UnunpentiumI
Uup '~5f. ...
I?
.. r.
I GeneralI Name Symbol SeriesI I I
lununpentium I Uup I
Group Period BlockI, I I,
Physical PropertiesI AtomicAtomic Atomic Mass RadiusNumber
Contents
History
• I Chemical Properties
• 2 Isotopes
• 3
• 4 In Popular Culture
References
• 5 External Links
• 6 Element Series
• 7
History
On 2 February 2004, synthesis of un un pentium and ununtrium
were reported in Physical Review C by a team composed of
115 1(299) g·mol- I pmI I
AppearanceI
I I
Covalent Phase I Density
Radius I
pm I g·cm-3
I I
[ Configuration
Crystal Electron Electrons
Structure Configuration per Shell
I [Rn] 5f14 2,8, 18,
6dl0 7s2 7p3 32,32, 18,
(guess based 5
on bismuth)
Other InformationI
Approved for Release by NSA on 09-06-2019, ForA Case # 10 5 997
lof4 12 /26/2018 12:24 PM