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

Why is the extraction of copper from pyrites is difficult?, Q)why is the ex...

Q)why is the extraction of copper from pyrites more difficult than that from its oxide ore through reduction? Ans) The Standard free energy of formation of Cu2S is greater than

Explain tempering, Tempering is a heat treatment method for metals and all...

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

Atomic strucyure, Ask The frequency of one ... The frequency of one of the ...

Ask The frequency of one ... The frequency of one of the lines in Paschen series of hydrogen atom is2.340x10 11 Hz. The quantum number n 2 which produces this transition is: (1) 6

Nmr, I have a question about HNMR OF RESONANCE system.

I have a question about HNMR OF RESONANCE system.

Which electronic configuration is not observing the ( n+ 1), Which electron...

Which electronic configuration is not observing the ( n+ 1) rule: (1) 1s 2 , 2s 2 , 2p 6 , 3s 2 , 3p 6 , 3d 1 , 4s 2                (2) 1s 2, sp 2 , sp 6 , 3s 2 , 3p 6 , 3

Explain ethanolysis, Explain Ethanolysis Ethanolysis of the acetal link...

Explain Ethanolysis Ethanolysis of the acetal linkage occurs in ethanol just as hydrolysis occurs in water.  An ethyl pyranoside is also produced from the glucose residue at th

3d: solid compounds, Table gives some halides and oxides of the 3 d serie...

Table gives some halides and oxides of the 3 d series elements, selected to show the range of stable oxidation states. These follow the similar trends as required in aqueous chem

An electronic transition between which orbits in hydrogen, The third line i...

The third line in Balmer series corresponds to an electronic transition between which Bohr's orbits in hydrogen: (1) 5 → 3               (2) 5 → 2      (3) 4→ 3

Assignment, solution and collegative properties explanation

solution and collegative properties explanation

Perfect gases - states of matter, A gas is a fluid. It has no resistance to...

A gas is a fluid. It has no resistance to change of shape and will expand indefinitely to fill any container in which is held. The molecules or atoms which make up a gas interact o

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