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Q. Determine mass of an electron? Ans. Three years later after J.J Thomson discovered the electron, the American scientist Robert Millikan used an oil drop experiment to accu
(i) Use valence shell electron pair repulsion theory (VSEPR) to predict the shape of the molecule comprising oxygen, nitrogen and fluorine atoms, which has the formula ONF, and whe
Difference between vegetable oils and Mineral oils Property Vegetable oils Minerals oils 1. Composition These ar
electro negetivity
Stephen reaction - Aldehydes and Ketones Benzaldehyde is acquired by partial reduction of phenyl cyanide along with stannous chloride and passing dry HCl gas in ether solution
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.
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=
what is alchemy
The amount of energy needed to convert one mole of solid substance to vapor state is known as Sublimation energy
Composition of protein - Biomolecules Composition of a protein changes with source. An estimated composition is as follows: Carbon from 50-53%; hydrogen from 6-7%; oxygen fr
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