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PERIODIC TABLE and PERIODICITY OF ELEMENT
The frequency of radiation emitted when the electron falls from n= 4 to n=1 in a hydrogen atom will be (Given ionization energy of H = 2.18x 10 -18 J atom-1 and h= 6.625x 10-
Describe why shielding is more effective by electrons in a shell of lower principle quantum number than by electrons having the similar principle quantum number.
Dear sir, We need your consultancy in a technical problem that we are confronting, and we would really appreciate your help We are in the process of implementing the heavy metal an
o.5oog of a sample which contains copper is analyzed iodometrically. Copper(II) is reduced to copper(I) by the iodide. What is the percent copper in the sample if 20.00cm3 of 0.1 m
In a potassium atom, electronic energy levels are in the following order: (1) 4s>3d (2) 4s>4p (3) 4s (4) 4s Ans: 4s
concentration cell with out transference +salt bridge
What is basically Gibb''s free energy change?Why it is required and How is related to spontaneity of a chemical reaction ? Ans) The energy associated with a chemical reaction t
standard protocol of glutamic acid
Chemical Properties of Alkyl Halides The alkyl halides are very reactive; the sequence of reactivity is as follow: Iodide > Bromide > Chloride (Nature of the hal
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