a) The wavelength that produces a line, B in Brackett series is 2165.6 nm
i. Determine the transition that forms the B line.
[3 Marks ]
ii. Calculate the energy emitted for the transition.
[3 Marks ]
iii. Another line, C was formed with wavelength of 1817.5 nm. Explain qualitatively, whether line B or line C, has the higher energy emitted .
[2 Marks ]
b) The electronic configuration of element D is 1s2 2s2 2p6 3s2 3p3.
i. Determine the transition that forms the B line.
[1 Mark ]
ii. Draw the orbital diagram of the valence electrons.
[1 Mark ]
iii. Draw and label the 3D shape of orbitals occupied by the valence electrons.
[4 Marks ]
iv. Explain the filling of the valence electrons in (b)(iii) according to the appropriate rule(s)/principle(s).
[7 Marks ]