Definitions |
grouping of chemical elements: metals with high specific gravity, typically larger than 5; they have complex spectra, form colored salts and double salts, have a low electrode potential, are mainly amphoteric, yield weak bases and weak acids, and are oxidizing or reducing agents.
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definition |
grouping of chemical elements: metals with high specific gravity, typically larger than 5; they have complex spectra, form colored salts and double salts, have a low electrode potential, are mainly amphoteric, yield weak bases and weak acids, and are oxidizing or reducing agents.
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