ChemicalElements

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Element Symbol AtomicNumber ChemicalPropertyId OriginOfName Group Period AtomicWeight AtomicWeightUncertainty Density MeltingPoint BoilingPoint HeatCapacity Electronegativity AbundanceInEarthsCrust
Fermium Fm 100 Actinide Enrico Fermi, physicist 7 -9.70 -1125.00 1.30 0.00
Einsteinium Es 99 Actinide Albert Einstein, physicist 7 8.84 1133.00 -1269.00 1.30 0.00
Berkelium Bk 97 Actinide Berkeley, California, where the element was first synthesized, by analogy with terbium 7 14.79 1259.00 2900.00 1.30 0.00
Curium Cm 96 Actinide Pierre Curie, a physicist, and Marie Curie, a physicist and chemist, named after great scientists by analogy with gadolinium 7 13.51 1613.00 3383.00 1.28 0.00
Americium Am 95 Actinide The Americas, as the element was first synthesized on the continent, by analogy with europium 7 13.69 1449.00 2880.00 1.13 0.00
Plutonium Pu 94 Actinide Pluto, a dwarf planet in the Solar System (then considered the ninth planet) 7 19.84 912.50 3501.00 1.28 0.00
Neptunium Np 93 Actinide Neptune, the eighth planet in the Solar System 7 20.45 917.00 4273.00 1.36 0.00
Astatine At 85 Metalloid the Greek astatos, 'unstable' 17 6 7.00 575.00 610.00 2.20 0.00
Polonium Po 84 Post-​transition metal Named after the home country of Marie Curie (Polonia, Latin for Poland), who is also the discoverer of Radium 16 6 9.32 527.00 1235.00 2.00 0.00
Tennessine Ts 117 Unknown chemical properties Tennessee, United States 17 7 -7.20 -723.00 -883.00 0.00