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!
Q. Illustrate Metallic Bonding?
Ans.
A metal is crystalline because it has a regularly repeating, closely packed structure. In a metal, though, this closely packed structure is formed from the positive cations only. These cations are surrounded by mobile valence electrons.
Metal atoms possess loosely held electrons in their outermost, or valence, shell. The electron clouds overlap so that the loosely held valence electrons are free to move between all the metal atoms in the crystal. These valence electrons are said to be delocalized.
A metal crystal consists of a regular packing of positive ions surrounded by delocalized, valence electrons.
Physical properties of metals can be explained by their special type of bonding. For example, metals are malleable and ductile. When a metal is forced into a new shape, the metal atoms settle into new positions.
Often metals are also good conductors of electricity since the electrons in a metal crystal may travel freely.
Assume that we want to make buffer by dissolving in water some amount of the compound which we selected by the table as given below; After that adding either strong acid (f
Electromeric effect (1) The occurrence of movement of electrons from one atom to other in multi bonded atoms at the demand of attacking reagent is known as electromeric effect.
diamond is covalent.yet it has high melting point.why?
Tempering is a heat treatment method for metals and alloys. In steels, tempering is completed to "toughen" the metal by transforming brittle marten site into bainite or a combinat
Explain thiols Because of the element effect, both thiols (the compounds with -SH groups) are more acidic than ethanol (CH 3 CH 2 OH). The compound ClCH 2 CH 2 SH is the more
0.45 g of anhydrous oxalic acid is reacted with 50 ml of KMNO4 . Then normality of KMnO4 is??
what is the relevance of half filled and completely filled orbitals in ionisation enthalphy ditermination
Protein classification on the basis of size
application of polarogrophy in deatails
explain the merits and demerits of calomel electrode
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