boron- s block element , Chemistry

Assignment Help:

Boron

The only nonmetallic element in group 13, boron has a strong tendency to covalent bonding. It's lonely complex structural chemistry arises from the (2s)2(2p)1 configuration, which produce it one less valence electron than the number of orbitals in the valence shell. Simple compounds such as BCl3 have an incomplete octet and are strong Lewis acids, but boron usually accommodates its electron deficiency by forming clusters with multicenter bonding.

Boron is not a common element on the Earth overall (about 9 p.p.m. in the crust) but happens in concentrated deposits of borate minerals such as borax Na2[B4O5(OH)4].8H2O, associated with former volcanic activity or hot springs. It is used mostly as borates in enamels, glasses, detergents and cosmetics, and in lesser amounts in metallurgy.

 


Related Discussions:- boron- s block element

Standard molar entropy of formation, Q. In 1982, the International Union of...

Q. In 1982, the International Union of Pure and Applied Chemistry recommended that the value of the standard pressure p o  be changed from 1 atm to 1 bar. This change affects the

Test for hydrocyanic acid, Q. Test for hydrocyanic acid? Hydrocyanic ac...

Q. Test for hydrocyanic acid? Hydrocyanic acid is present as an impurity in synthetic ethyl isothiocyanate, which is employed to make the flavour of mustard oil more pungent. T

THROPE REACTION, WHAT ARE THE LIMITATION OF THROPE REACTION?

WHAT ARE THE LIMITATION OF THROPE REACTION?

Functional isomerism - organic chemistry, Functional isomerism: This k...

Functional isomerism: This kind of isomerism is because of difference in the nature of functional group present in the isomers. The given pairs of elements all time form funct

Cellulose - biomolecules, Cellulose - Biomolecules Cellulose is found i...

Cellulose - Biomolecules Cellulose is found in all plants and thus is the most abundant of all carbohydrates. It is the substance required to form cell walls and another struct

Question, Hybridisation of sulfury chloride

Hybridisation of sulfury chloride

Extraction of metals, metals iron, aluminium, copper, gold, etc. have great...

metals iron, aluminium, copper, gold, etc. have great industrial significants. which are their important ores? important alloys of iron, aluminium and copper and their uses.

The order of stability of carbocations and carbanions , the order of stabil...

the order of stability of carbocations and carbanions For carbocation 3 degree > 2 degree > 1 degree for carbanion 1 degree > 2 degree > 3 degree

Classification of polymers - synthetic polymers, Classification of polymers...

Classification of polymers - Synthetic polymers The polymers that are prepared in the laboratories are known as synthetic polymers. These are as well described as manmade polym

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd