Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
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.
Which one is the electronic configuration of Fe +2 : (1) 1s 2, 2s 2 , 2p 6 , 3s 2 , 3p 6 , 3d 6 (2) 1s 2 , 2s 2 , 2p 6 , 3s 2 , 3p 4 , 4s 2 (3) 1s 2 , 2s 2 ,
Q. Explain Valence Bond Theory? This concept starts with the assumption that the bond between the metal ion and the ligand is basically covalent in nature. In order to form a c
Q. Illustrate the structure of Alkanes? Ans. Alkanes have the general formula C n H 2n+2 . This means that for every n atoms of carbon, there are 2n + 2 atoms of hydrogen.
how we determine the compound is ir active or not . and how we determine the polarity of a compound?
What is the principle underlying the extraction of metal
what is ngp in addition reaction
what is perkin reaction?
Statistical experimental methods are used in product development. In order to adopt the statistical product design or experimental method, it is necessary to understand the basic c
What is the reliablitiy of redox titrations?
Consider the ground state of(Z= 24) . The numbers of electrons with the azimuthal quantum numbers,l=1 and 2 are, respectively: (1) 16 and 4 (2) 12 and 5
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!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd