Structure of Atoms
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3 months agoNew answer posted
3 months agoContributor-Level 10
(a) As Fe3+ contains 5 impaired electrons while Fe2+ contains only 4 unpaired electrons. Fe3+ is more paramagnetic.
New answer posted
3 months agoContributor-Level 10
(b) Both the statements are correct but R is not the reason for A.
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3 months agoContributor-Level 10
(a) Fully filled and half-filled orbitals have extra stability (that is, lower energy). Thus, p3, p6, d5, d10, f 7, f14 etc. configurations, which are either half-filled or filled, are more stable. Chromium and copper therefore adopt the d5 and d10 configuration.
New answer posted
3 months agoContributor-Level 10
(c) The path of an electron in an atom can never be determined or known accurately. That is why there is only a probability of finding the electron at different points in an atom.
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3 months agoContributor-Level 10
(a) Classical mechanics applies to the macro world and hence fails when it is applied to the micro world. In the micro world, quantum mechanics incorporates all the principles like the uncertainty principle, dual behaviour etc.
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3 months agoContributor-Level 10
(d) Rainbow is a continuous spectrum.
Assertion is a wrong statement but Reason is a correct one. Rainbow is a continuous spectrum.
New answer posted
3 months agoContributor-Level 10
(a) For n = 4, No. of sub-shells = (l = 0, l = 1, l = 2, l = 3) = 4.
(b) Total number of orbitals which can be present = n2 = 42 = 16.
Each orbital can have an electron with ms = – 1/2. Total no. of electrons with m, = – 1/2 is 16.
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3 months agoContributor-Level 10
(a) P (Z=15) : [Ne]103s23p3 No. of unpaired electrons = 3
(b) Si (Z=14) : [Ne]103s23p2 No. of unpaired electrons = 2
(c) Cr (Z=24): [Ar]184s13d5 No. of unpaired electrons = 6
(d) Fe (Z=26): [Ar]184s23d6 No. of unpaired electrons = 4
(e) Kr (Z=36) : [Ar]184s23d104p6 No. of unpaired electrons = Nil.
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