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Till 20elememts write the no of electrons in outermost shell.if less than 4 then this is the valency otherwise subtract from 8
why halogens are both +R and -I groups?
what is hydrated copper
PEPTIDE?
IUPAC system of nomenclature of complex compounds The naming of any organic compound relies on the name of normal parent hydrocarbon from that it has been derived. IUPAC system
LANTHANUM AND THE LANTHANIDES The lanthanides are 14 components following lanthanum in the periodic table, and associated with the filling of the seven orbitals of the
The ratio between the neutrons in C and Si with respect to atomic masses 12 and 28 is: (1) 2 : 3 (2) 3 : 2 (3) 3 : 7 (4) 7 : 3 Ans: 3 : 7
Nitrogen has the electronic configuration 1s 2 , 2s 2 , 2p 1 x , 2p 1 y , 2 p 1 z and not 1s 2 , 2s 2 , 2p 2 x , 2p 1 y , 2 p 0 z which is determined by: (1) Aufb
Ask question #imum 100 words accepted# Discussion about electrochemical serirs
If an electron has spin quantum number of +1/2 and a magnetic quantum number of -1 , it cannot be presented in an: (1) d -orbital (2) f -orbital (3) p -orbital (4)s-
USE THE KINETIC PARTICLE THEORY TO EXPLAIN THE EXISTENCE OF THE DIFFERENT STATES OF MATTER
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