Germanium and its compounds, s. Silicon

Group.
existence of, predicted by Men-
delejeff, 482

Gay-Lussac's law of volumes, 87, 88, 281,
282

Gold and its compounds, s. Copper Group.
Group, use of term in nomenclature of pe-
riodic law, 389

Group I., elements of (Li to Au), 435–446
(s. also Alkali metals, and Copper Group.)
Group II., elements of (Be to Hg), 396-410
(s. also Calcium Group, and Magnesium
Group.)

Group III., elements of (B to Yb), 453-466
(s. also Boron Group, and Aluminium
Group.)

Group IV., elements of (C to Pb), 467-482
(s. also Carbon Group, and Silicon Group.)
Group V., elements of (N to Bi), 424-343
(s. also Nitrogen Group, and Nitrogen-
Phosphorus Group.)

Group VI., elements of (0 to U), 411-422
(s. also Chromium Group, and Sulphur
Group.)

Group VII., elements of (F to Mn), 150-159,
194-203, 447-452 (s. also Chromium Group,
and Chlorine Group.)

Group VIII., elements of (Fe to Pt), 483-
495 (s. also Iron Group, and Rhodium-
Iridium Group.)

Guldberg and Waage's law of mass-action,
247

66

Aluminium Group (Al,

Ga, In, TI), 463

Boron Group (B, Sc, Yt,

La, Yb), 457

Calcium Group (Be, Ca,

Sr, Ba), 400

Carbon Group (C, Ti, Zr,
Ce, Th), 471

Chromium Group (Cr,

Mo, W, U), 415

Copper Group (Cu, Ag,
Au), 441

Iron Group (Fe, Ni, Co),
488

Magnesium Group (Mg,

Cd, Zn, Hg), 407

Nitrogen Group (N, P,

As, Sn, Bi), 223

Nitrogen-Phosphorus

Group (N, P, V, As, Nb,
Sb, Di, Er, Ta, Bi), 429

Aluminium Group (Al, Ga, In, TI),
465

Boron Group (B, Sc, Yt, La, Yb), 458
Calcium Group (Be, Ca, Sr, Ba), 401
Carbon Group (Ti, Zr, Ce, Th), 472
Chromium Group (Cr, Mo, W, U),

419

Chromium-Manganese Group (Cr,
Mn, Fe), 197

Copper Group (Cu, Ag, Au), 442
Iron Group (Fe, Ni, Co), 489
Magnesium Group (Mg, Cd, Zn, Hg),
408

Nitrogen-Phosphorus Group (V,
Nb, Sb, Di, Er, Ta, Bi), 432

Rhodium-Iridium Group (Rh, Ru,
Pd, Ir, Os, Pt), 495

Silicon Group (Ge, Sn, Pb), 480

Scandium and its compounds, s. Boron

Group.

existence of, predicted by Men-
delejeff, 482

Selenion and its compounds, s. Sulphur

Group.