An atom contains 2 electrons in shell having principal quantum number=1, 8 electrons in shell having principal quantum number=2 and 8 electrons in shell having principal quantum number=3. Determine its (a) symbol and electronic configuration (b) total number of s and p orbitals (c) calculate and draw total number of angular nodes in each orbitals.
An atom contains 2 electrons in shell having principal quantum number=1, 8 electrons
in shell having principal quantum number=2 and 8 electrons in shell having principal
quantum number=3. Determine its (a) symbol and electronic configuration (b) total
number of s and p orbitals (c) calculate and draw total number of angular nodes in each
orbitals.
(c) If we replace the hydrogen atoms in ammonia with the ethyl moieties (C2H5)3— N),
there is no change in the hybridization of central oxygen atom, yet they have different
bond angles, Why? Which molecule has lower bond angle? Give reasons to support
your answer.
(d) What is the simplest justifications for believing that molecular structure is more often
governed by BP-BP/BP-LP/LP-LP repulsions than by the van der Walls repulsions of
the nonbonding electrons on the substituent atoms?
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