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The configuration 1s2 2s2 2p5 3s1 shows:
(1) Excited state of O2-
(2) Excited state of neon
(3) Excited state of fluorine
(4) Ground state of fluorine atom
Ans: Excited state of neon
Explain trend in variation of the atomic size properties from Boron and Thallium
A covalent bond between two atoms is formed by which of the following: (1) Electron nuclear attraction (2) Electron sharing (3) Electron transfer (
Coordination Position Isomerism: If in a multinuclear complex the distribution of ligands around the metal centres changes it will result in a different isomer. Such an isomerism
#question50 ml of a mixture of NH3 and H2 was completely decomposed by sparking into nitrogen and hydrogen. 40 ml of Oxygen was then added and the mixture was sparked again. After
what are the applications of this principle in agricultural engineering
General Tests on Benzoic Acid (a) It dissolves in hot water but separates out in the form of white shining flakes on cooling. (b) Benzoic Acid evolves CO 2 with sodium bica
Till 20elememts write the no of electrons in outermost shell.if less than 4 then this is the valency otherwise subtract from 8
Why magnesium does not impart any colour to Bunsen flame while calcium does
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describe vesper theory?
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