ChemicalElements

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Element Symbol AtomicNumber ChemicalPropertyId OriginOfName Group Period AtomicWeight AtomicWeightUncertainty Density MeltingPoint BoilingPoint HeatCapacity Electronegativity AbundanceInEarthsCrust
Promethium Pm 61 Lan­thanide Prometheus of Greek mythology who stole fire from the Gods and gave it to humans 6 7.26 1315.00 3273.00 1.13 0.00
Tin Sn 50 Post-​transition metal English word (stannum in Latin) 14 5 118.71 0.01 7.29 505.08 2875.00 0.23 1.96 2.30
Indium In 49 Post-​transition metal indigo 13 5 114.82 0.00 7.31 429.75 2345.00 0.23 1.78 0.25
Manganese Mn 25 Transition metal corrupted from magnesia negra, see Magnesium 7 4 54.94 0.00 7.44 1519.00 2334.00 0.48 1.55 950.00
Samarium Sm 62 Lan­thanide Samarskite, the name of the mineral from which it was first isolated 6 150.36 0.02 7.52 1345.00 2067.00 0.20 1.17 7.05
Iron Fe 26 Transition metal English word (ferrum in Latin) 8 4 55.85 0.00 7.87 1811.00 3134.00 0.45 1.83 56300.00
Gadolinium Gd 64 Lan­thanide Johan Gadolin, chemist, physicist and mineralogist 6 157.25 0.03 7.90 1585.00 3546.00 0.24 1.20 6.20
Terbium Tb 65 Lan­thanide Ytterby, Sweden 6 158.93 0.00 8.23 1629.00 3503.00 0.18 1.20 1.20
Dysprosium Dy 66 Lan­thanide the Greek dysprositos, 'hard to get' 6 162.50 0.00 8.55 1680.00 2840.00 0.17 1.22 5.20
Niobium Nb 41 Transition metal Niobe, daughter of king Tantalus from Greek mythology 5 5 92.91 0.00 8.57 2750.00 5017.00 0.27 1.60 20.00