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The spectrum of He is expected to be similar to:
(1) H
(2) Li+
(3) Na
(4) He+
Ans: Li+
why mercury been liquid?
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Which set of quantum numbers for an electron of an atom is not possible: (1) n=1 l=0, m=-0, s= +1/2 (2) n=1, l=1, m=-1, s= +1/2 (3) n=1, l=0, m=0, s= -1/2 (4) n=
discuss the concentration of cations in the solution copper sulphate and zinc sulphate
The Vermont Wind Assessment Program led by Vermont Tech has measured the wind velocity at 25 locations in the state of Vermont in 2005 and 2006 . The results are provided in the
why the hydroxides of alkaline earth metals are less basic than alkali metals of the corresponding periods?
Q. What are the Chemical Properties of Halogens? Ans. he halogens have 7 valence electrons in their outermost shell. Note that 7 is one electron short of the octet.
what is surface chemistry?
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Vulcanization: Vulcanization is very widely used in rubber technology to improve the properties such as low tensile strength, plastic nature, thickness etc. by adding some chemica
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