| | Ir 193·3 (Joly) | | | Pt 196·0 (Dittmar McArthur) | | | Au 197·5 (Mallet) | | HgE_{2} --| Hg 200·5 (Erdmann Mar.) | | TlE_{3} -- --| Tl 204·1 (Crookes) | | PbE_{4} -- -- --| Pb 206·90 (Stas) | | BiE_{3} -- --| Bi 208·9 (Classen) | | | Five unknown elements. | | | Th 232·4 (Krüss Nilson) | | | Unknown element. | | | U 239·3 (Zimmermann) | +-------------------------+--------------------------------+ +----------------------------------------------------------------------+ | | | | | Composition of the saline compounds, X = Cl | | | +----------------------------------------------------------------------+ | Br, (NO_{3}), 1/2 O, 1/2 (SO_{4}), OH, (OM) = Z, where M = K, | | 1/2 Ca, 1/3 Al, &c. | |Form RX RX_{2} RX_{3} RX_{4} RX_{5} RX_{6} RX_{7} RX_{8}| |Oxi- R_{2}O RO R_{2}O_{3} RO_{2} R_{2}O_{5} RO_{3} R_{2}O_{7} RO_{4}| |des | | [7] [8] [9] [10] [11] [12] [13] [14] | | | | X or H_{2}O | | iX | | -- BeX_{2} | | -- -- BX_{3} | | | | -- CO -- COZ_{2} | | N_{2}O NO NOZ NO_2 NO_{2}Z | | -- OX_{2} | | FZ | | | | NaX | | -- MgX_{2} | | -- -- AlX_{3} | | -- -- -- SiOZ_{2} | | -- -- PX_{3} -- POZ_{3} | | -- SX_{2} -- SOZ_{2} -- SO_{2}Z_{2} |