IMPORTANT TRENDS AND ANOMALOUS PROPERTIES OF BORON

Trichloride, Tribromides and Triiodides of group 13 elements are covalent in nature and can be hydrolysed in water.

Monomeric trihalides of these elements are strong Lewis acids.

BF3 + :NH3 → NH3-BF3

Metal halides of group 13 elements are generally dimerized through halogen bonding.

Anomalous properties of Boron are listed below –

Boron shows quite higher melting and boiling points than other elements of group 13.

Boron forms only covalent compounds while other elements of the group 13 form both ionic and covalent compounds.

Boron is a metalloid while other elements of the group 13 are metals.

Oxides and hydroxides of boron are acidic in nature while oxides and hydroxides of other elements of the group are amphoteric and basic in nature.

Related Topic Name

1. Group 13 elements : The boron family
3. Some important compounds of boron
4. Uses of boron and aluminium and their compounds
5. Group 14 elements : The carbon family
6. Important trends and anomalous properties of carbon
7. Allotropes of carbon
8. Some important compounds of carbon and silicon