(a)
Interpretation:
The electronic configuration of Xenon using an abbreviation of the previous noble gas needs to be determined.
Concept introduction:
An atom consists of three sub-atomic particles; electrons, protons and neutrons. The
Quantum numbers are used to indicate the position and energy of electrons in an atom in a certain energy level. Electronic configuration represents the arrangement of electrons in different energy levels of an atom.
(b)
Interpretation:
The electronic configuration of the excited state of Xenonneeds to be determined, when 801 kJ of energy is needed to excite the valence electron to the next subshell.
Concept introduction:
An atom consists of three sub-atomic particles; electrons, protons and neutrons. The Bohr’s model purposed the concept of energy levels around the nucleus. It was first most accepted atomic model. The quantum mechanical model is based on certain concepts like quantum numbers, Heisenberg uncertainty principle, etc.
Quantum numbers are used to indicate the position and energy of electrons in an atom in a certain energy level. Electronic configuration represents the arrangement of electrons in different energy levels of an atom.
(c)
Interpretation:
The reason for energy required to completely remove an outermost electron from the excited state of Xe (369 kJ/mol)to be approximately equal to that of Cs atom (376 kJ/mol) needs to be explained.
Concept introduction:
An atom consists of three sub-atomic particles; electrons, protons and neutrons. The Bohr’s model purposed the concept of energy levels around the nucleus. It was first most accepted atomic model. The quantum mechanical model is based on certain concepts like quantum numbers, Heisenberg uncertainty principle, etc.
Quantum numbers are used to indicate the position and energy of electrons in an atom in a certain energy level. Electronic configuration represents the arrangement of electrons in different energy levels of an atom.
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CHEMISTRY-MASTERINGCHEMISTRY W/ETEXT
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