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Q. General Characteristics of elements of Group 13?
All the elements of Group 13 have similar valence shell electronic configuration of ns2np1, but the underlying core varies. For B and Al, it is the preceding noble gas core, for Ga and In, it is noble gas plus dl0 and for TI, noble gas plus 4f145d10. This variation in the electronic configuration of the core is also reflected in the ionisation energies of these elements and has a strong influence on their properties.
Aromaticity or aromatic character The characteristic behaviour of aromatic compounds is termed as aromaticity. Aromaticity is due to the extensive delocalisation of p-electron
Q. Explain about Thiosulphuric Acid? Thiosulphuric acid, H 2 S 2 0 3 , has never been isolated but its salts are well known which contain the thiosulphate ion, S 2 O 2- 3 . Th
Q. Explain emanation spectrum of an atom? The emanation spectrum of an atom indicates that the energy it emits is quantized meaning that only certain quantities of energy can b
Q. What do you mean by nucleus of the atom? The nucleus of an atom for the reason that atoms have no net electrical charge scientists reasoned that if an atom contains particle
Which of the following sets of quantum numbers represent an impossible arrangement: n l m m2 (1) 3 2 - 2 (+)
no mg eqivalent of solute per liter of solution
what are the chemical properties of protium, deuterium and tritium.
Why alcoholic acidity of maids is expressed as H2SO4?
The total number of electrons present in all the p-orbitals of bromine are: (1) Five (2) Eighteen (3) Seventeen (4) Thirty five Ans: Seve
what is perkin reaction?
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