Which of the following sets of quantum numbers are permissible? (J) n = 3, ℓ = 3, m = 2, s = +12 (K) n = 2, ℓ = 2, m = 1, s = -12 (L) n = 1, ℓ = 0, m = 0, s = -12 (M) n = 3, ℓ = 2, m = 1, s = -12 Choose the correct option:

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4

Which pair of orbitals has the same number of radial nodes?

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5

According to Bohr's model of an atom, as we move away from the nucleus, the energy of an electron orbit:

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6

The number of radial nodes for an orbital is given by (n - l - 1). Which pair of orbitals has the same number of radial nodes?

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7

A gas absorbs a photon of wavelength 4.0 × 10-7 m and subsequently emits radiation at two wavelengths. If one of the emissions occurs at 7.5 × 10-7 m, what is the wavelength of the second emission?

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8

A certain orbital having 2 angular nodes and no radial nodes is:

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