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A Lewis base in a coordination compound.

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History of diamonds

Diamond has been known for about 5 thousand years. Historians suggest that it was first discovered in India in river placers. It has long been credited with magical properties, and the largest famous crystals and products from them are shrouded in a halo of mystical legends.

Alkali Metals

Metals of Group IA (Na, K, Rb).

Amphoterism

The ability to react with both acids and bases.Ability of substance to act as either an acid or a base.

Homologous Series

A series of compounds in which each member differs from the next by a specific number and kind of atoms.

Salt Bridge

A U-shaped tube containing electrolyte, which connects two half-cells of a voltaic cell.

Hydrogenation

The reaction in which hydrogen adds across a double or triple bond.

Actinides

Elements 89 to 103 (between lawrencium and actinium) on the periodic table. Only the first four have been found in nature in appreciable amounts. The remainder have been produced synthetically.

Chemistry is a familiar school subject

Everyone liked to observe the reaction of reagents. But few know interesting facts about chemistry, which we will discuss in this article.

Radioactivity

The spontaneous disintegration of atomic nuclei.

xanthene dye

Any of a group of dyes having a molecular structure related to that of xanthene in which the aromatic (C6H4) groups are the chromophore.