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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.
uses of DDT, Saccharin, BHC and Chloramine
Halides and halide complexes Almost all elements create thermodynamically stable halides. The general stability sequence is F>Cl>Br>I, that in covalent compounds follows the su
Q. Explain about Conservation of Mass? Conservation of Mass above two centuries ago chemists established a fundamental law called the law of conservation of mass. This l
It is Hydrated Potassium Aluminium Sulfate [ KAl(SO4)2·12H2O ].
please tell the observation & inference, when ammonium phosphate (NH4)3PO4 undergoes charcoal cavity test & cobalt nitrate test.....
Solid xenon forms crystals with a face centered unit cell that has an edge of 620 pm. 1. calculate the atomic radius of xenon. 2. calculate the packing efficiency if xenon. So
The electronic configuration of gadolinium (atomic no. 64) is: (1) [Xe]4s 8 5d 9 6s 2 (2) [Xe] 4s 1 5d 1 6s 2 (3) [Xe]4s 3 5d
20.0 mL of 0.2 M CaCl 2 diluted with water to 100.0 mL. Calculate [CaCl 2 ], [Ca 2+ ] and [Cl - ]. Produce from concentrated hydrochloric acid (12 M) 3.0 L 0.60 M HCl solution.
i wanted the glycol properties and its chemical reactions n preparation
priming and foaming ?
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