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ALLEN-QUANTUM NUMBER & PERIODIC TABLE-EXERCISE
- The electronic configuration of an clement is 1s^(2), 2s^(2), 2p^(6), ...
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- the number of d- electrons in Mn^(2+) is equal to that of :
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- Which of the following is correct order of EA.
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- Select the correct statement(s).
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- Which of the following are correct
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- If Aufbau's principle and Hund's rule were not followed.
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- ln which of the following sets of elements 1^(st) element is more meta...
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- Amongst the following statements, which is/are correct?
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- Select the correct statements (s)
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- Statement-1 : The groundstate configuration of Cr is [Ar] 3d^(5) 4s^(1...
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- Assertion: The first ionisation energy of Be is greater than that of B...
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- Statement-1 : IE(1) ofN is greater than 0 . Statement-2: N-atom is b...
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- Statement-1 : First electron gain enthalpy is alway -ve for an element...
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- Statement-1: Ionization potential of Sn is less than Pb. Statement-2...
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- Statement-1 : Electron gain enthalpy of Cl is largest in periodic tabl...
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- The general electronic configuration of outer most and penultimate she...
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- The number of protons present in the divalent cation of the element of...
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- Which of the following isoelectronic species has the largest radius?
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- If electrons are filled in the sub shells of an atom in the following ...
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