How to remember valency of elements, Chemistry

Assignment Help:

Till 20elememts write the no of electrons in outermost shell.if less than 4 then this is the valency otherwise subtract from 8


Related Discussions:- How to remember valency of elements

Dichromate titrations - oxidation reduction titrations, Dichromate titratio...

Dichromate titrations - oxidation reduction titrations These are titrations where, potassium dichromate is utilized as an oxidising agent in acidic medium. The medium is organi

Evaluate the standard molar reaction enthalpy, Q. Use values of Δ f H an...

Q. Use values of Δ f H and Δ f G to evaluate the standard molar reaction enthalpy and the thermodynamic equilibrium constant at 298.15 K for the oxidation of nitrogen to form a

Mesomeric effect and resonance effect, Mesomeric forms are the possible loc...

Mesomeric forms are the possible locations of electrons at a single instant, if you get what I mean. Like, an adjacent double and single bond in a molecule. The resonance form, how

Comparison of alkyl cyanides and alkyl isocyanides, Test Ethyl c...

Test Ethyl cyanide Ethyl isocyanide Smell Strong but pleasant Extremely unpleasant Dipole moment

Which one of the following is not isoelectronic with o2, Which one of the f...

Which one of the following is not isoelectronic with O 2- : (1) N- 3                    (2) F -         (3) Tl +                   (4) Na + Ans: Tl +

Illustrate born-haber cycle, Q. Illustrate Born-Haber cycle? Boron is a...

Q. Illustrate Born-Haber cycle? Boron is always covalent and does not   form,B 3+ ions, because' the energy required to remove three electrons is very high.  Many simple compo

P block elements, maximum no of unpaired electrons a)mn2+ b)ti3+ c)v3+ d)fe...

maximum no of unpaired electrons a)mn2+ b)ti3+ c)v3+ d)fe2+

Polymers., uses of the polymer bakelite

uses of the polymer bakelite

Physical properties of formic acid, Physical properties of Formic Acid ...

Physical properties of Formic Acid (a) Formic Acid is a pungent smelling and colourless liquid. (b) Formic Acid melts at 8.4° C and boils at 100.5° C . (c) Formic Acid i

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