hydrogeniumn.

/hʌɪdrəʊˈdʒiːnɪəm/

Etymology: formed as hydrogen n. + -ium suffix in names of new metals.

Chemistry.

Hydrogen regarded as a metal, and, as such, capable of being absorbed or occluded by certain metals.

ΘΚΠ

the world > matter > chemistry > elements and compounds > metals > [noun] > unknown

didymium1842

hydrogenium1868

samarium1879

actinium1881

1868 T. Graham in Proc. Royal Soc. (1869) 17 212 On the Relation of Hydrogen to Palladium. Examination of the properties of what, assuming its metallic character, would have to be named Hydrogenium.

1868 T. Graham in Proc. Royal Soc. (1869) 17 213 The density of hydrogenium then, appears to approach that of magnesium 1·743 by this first experiment.

1871 H. E. Roscoe Lessons Elem. Chem. (new ed.) xvii. 186 Metallic palladium takes up no less than 982 volumes of hydrogen gas, forming a veritable alloy of the metal with hydrogenium, or hydrogen in its solid form.

This entry has not yet been fully updated (first published 1899; most recently modified version published online June 2018).

单词	hydrogenium
释义	hydrogeniumn. /hʌɪdrəʊˈdʒiːnɪəm/ Etymology: formed as hydrogen n. + -ium suffix in names of new metals. Chemistry. Hydrogen regarded as a metal, and, as such, capable of being absorbed or occluded by certain metals. ΘΚΠ the world > matter > chemistry > elements and compounds > metals > [noun] > unknown didymium1842 hydrogenium1868 samarium1879 actinium1881 1868 T. Graham in Proc. Royal Soc. (1869) 17 212 On the Relation of Hydrogen to Palladium. Examination of the properties of what, assuming its metallic character, would have to be named Hydrogenium. 1868 T. Graham in Proc. Royal Soc. (1869) 17 213 The density of hydrogenium then, appears to approach that of magnesium 1·743 by this first experiment. 1871 H. E. Roscoe Lessons Elem. Chem. (new ed.) xvii. 186 Metallic palladium takes up no less than 982 volumes of hydrogen gas, forming a veritable alloy of the metal with hydrogenium, or hydrogen in its solid form. This entry has not yet been fully updated (first published 1899; most recently modified version published online June 2018). < n.1868
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