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@kantuser_2 vk

The lanthanides and the actinides are usually shown as two additional rows below the main body of the periodic table. @cat_99k

Stanford materials corporation smc is a worldwide supplier of lanthanides, including their pure metals, oxides, compounds, sputtering targets, and evaporation materials. In general, the toxicity of the lanthanides decreases as the atomic number increases, probably because of the. The lanthanides and the actinides are usually shown as two additional rows below the main body of the periodic table. For example, in erdoped fiber amplifiers, which are used as repeaters in the terrestrial and submarine fiberoptic transmission links that carry internet traffic.

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