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

Principle underlying the quantitative analysis, Principle underlying the qu...

Principle underlying the quantitative analysis: In flame photometry, the thermal energy from flame is utilized to convert the analyte within gaseous atoms and then to excite t

what is happen whenever h2so4+hno3 adding to the phenol?, What is happen ...

What is happen whenever H2SO4+HNO3 adding to the phenol.give the reaction Ans) Phenol + HNO3(in prescence of sulphuric acid) --> 2-nitrophenol + 4-nitrophenol.

Determine fraction of the atomic volume, The nucleus of an atom can be assu...

The nucleus of an atom can be assumed to be spherical. The radius of the nucleus of mass number 7  is given by 1.25x 10 -13 A 1/3 cm  Radius of atom is one A. If the mass number

Which statement is not correc, Which statement is not correct for n=5, m=3:...

Which statement is not correct for n=5, m=3: (1) l=4                    (2) l=0, 1.3, s =+1/2            (3) l= 3                  (4) All are correct Ans:l=4

Define standard reduction potential, Q. Define standard reduction potential...

Q. Define standard reduction potential ? Ans. The standard reduction potential, E o As we have seen in the example of a chemical cell in the previous section, the redox rea

Carbon is present as graphite in white cast iron , Cast iron is iron or a f...

Cast iron is iron or a ferrous alloy which has been heated until it liquefies, and is then poured into a mould to solidify. It is usually made from pig iron. The alloy constituents

When an electron drops a higher energy level to low energy, When an electro...

When an electron drops from a higher energy level to a low energy level, then: (1) Atomic number decreases (2) Energy is absorbed (3) Atomic number increases (4) Energ

Cu2+ will have the following electronic configuration, Cu 2+ will have the...

Cu 2+ will have the following electronic configuration: (1) 1s 2 , 2s 2 , 2p 6 , 3s 2 , 3p 6 , 3d 10 , (2) 1s 2 , 2s 2 , 2p 6 , 3s 2 , 3p 9 , 4s 1     (3) 1s 2 , 2s 2 ,

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