Hardly had he left ………. his brother came.

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#Question id: 20192

#XL - P Chemistry

The orbital angular momentum for an electron revolving in an orbit is given by  This momentum for an s-electron will be given by

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#Question id: 20193

#XL - P Chemistry

The atomic number of an element is 35. What is the total number of electrons present in all the p-orbitals of the ground state atom of that element ?

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#Question id: 20194

#XL - P Chemistry

The emission spectrum of hydrogen is found to satisfy the expression for the energy change “E (in Joules) such that “E = 2·18 x 10^–18 J where n₁ = 1, 2, 3 ........ and n₂ = 2, 3, 4,...... The spectral lines correspond to Paschen series it

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#Question id: 20195

#XL - P Chemistry

Among the following series of transition metal ions, the one where all metal ions have same 3d electronic configuration is

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#Question id: 20196

#XL - P Chemistry

Time taken for an electron to complete one revolution in the Bohr orbit of hydrogen atom is

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#Question id: 20197

#XL - P Chemistry

Which of the following sets of quantum numbers is correct for an electron in 4f – orbital ?