Which of the following is a possible ground-state electron configuration?
2 answers:
Answer : Option A) [Xe]
Explanation : Lead is the element which is represented in the ground state electron configuration as [Xe] .
It has only 2 + 14 + 10 + 2 = 28 electrons and protons more than that of Xenon.
Xenon has atomic number as 54, now adding 28 protons in its atom will make it 82 which the atomic number of Lead.
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The electron domain geometry is trigonal bipyramidal while the molecular geometry of the compound is seesaw.
The shapes of molecules is determined by the number of electron pairs on the valence shell of the central atom in the molecule. These electron domains include lone pairs and bond pairs.
The lone pairs only contribute towards the electron domain geometry and not the molecular geometry. SCl4 has five electron domains hence its electron domain geometry is trigonal bipyramidal. The molecular geometry of the compound is seesaw.
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