![]() ![]() Where, ni initial orbit n f final orbit (10). Chemistry Short Notes Arvind Arora Chemistry Expert 5 (9). (c) Energy of stationary states (d) Radii of the stationary states/orbits (b) Orbit angular momentum of an electron, Where, Ŷ = ϭ, Ϯ, ϯ. H E 1 = Energy of lower energy state E 2 = Energy of higher energy state. Bohr’s ŵodel of hydrogeŶ atoŵ (a) Frequency of radiation absorbed or emitted during transition Energy of quantum of radiation accordiŶg to PlaŶĐk͛s ƋuaŶtuŵ theoƌLJĮ hv (6). Chemistry Short Notes Arvind Arora Chemistry Expert 4 Number of electrons in nth shell = 2n 2 Number of orbitals in subshell = 2l + 1 Number of electrons in subshell = 2 (2l + 1) (5). Mass of that element in 1 mole of the compound Number of molecules in n moles of substance n NA (12). M V 1 1 M V 2 2 M (V 3 1 V ) 2 Molarity can be directly calculated from % by mass (w/w) if density is known Molarity Dilution formula : M V 1 1 M V 2 2 For mixing two solutions of the same substance Number of molecules in V litre of gas at S.T. Number of molecules in W(g) of substance A Aldehydes, Ketones and Carboxylic Acids.Chemical Kinetics and Nuclear Chemistry. ![]() Chemistry Chemistry Short Notes Arvind Arora ![]()
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