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

How to know which compound is more stable, How to know which compound is mo...

How to know which compound is more stable if heat of formation values are given . Ans) Every compound tend to stay in lowest energy possible to be more stable, the less the energy

The energy of a radiation of wavelength, The energy of a radiation of wavel...

The energy of a radiation of wavelength 8000 Å is E 1  and energy of a radiation of wavelength 16000 Å is E 2 . What is the relation between these two: (1) E 1 =6E 2

Biodegradable polymers, Biodegradable polymers These are the polymers t...

Biodegradable polymers These are the polymers that are degraded through micro-organisms in an appropriate period so that biodegradable polymers and their degraded products do n

Organic chemistry, the measured dipole moment of-para nitroaniline (6.2D) i...

the measured dipole moment of-para nitroaniline (6.2D) is larger than the value calculating using empirical group moment (5.2D)

Explain the heat of formation of the gases, Take these values into account ...

Take these values into account and comment on the relation between the heat of formation of the gases and the vibrational frequencies again.

Physical properties of oxalic acid, Physical Properties of Oxalic Acid ...

Physical Properties of Oxalic Acid (a) Oxalic Acid is a colourless crystalline solid. It contains two molecules of water as water of crystallisation. (b) The hydrated form h

Discuss effect of impurity and temperature, Discuss effect of impurity, tem...

Discuss effect of impurity, temperature and alloying on the electricity conductivity of metal. For an ideal crystal with no impurities and imperfections mean free path at 0 K i

Back-titration, 1 gram of pure sodium carbonate is dissolved in water and t...

1 gram of pure sodium carbonate is dissolved in water and the solution is made up to 50 ml of this solution 50 ml of 0.1 N HCl is added whose volume is 50 ml and the mixture furthe

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