Respuesta :
(a)
Electronic configuration is given as follows:
[tex][Kr]4d^{3}[/tex]
Since, this is the electronic configuration of ion with+3 that means 3 electrons are removed. On adding the 3 electrons, the electronic configuration of neutral atom can be obtained.
Thus, electronic configuration of neutral atom is [tex][Kr]4d^{5}5s^{1}[/tex].
The atomic number of Kr is 36, thus, total number of electrons become 36+6=42.
This corresponds to element: molybdenum. Thus, the tripositive atom will be [tex]Mo^{3+}[/tex].
(b) The given electronic configuration is [tex][Kr]5s^{2}4d^{2}[/tex].
The atomic number of Kr is 36, thus, total number of electrons become 36+4=40.
This corresponds to element zirconium, represented by symbol Zr.
The configuration [kr] 4d3 belongs to molybdenum III ion while the configuration [kr] 5s 2 4d2 belongs to zirconium atom
What is electron configuration?
The term electron configuration refers to the arrangement of electrons in the shells of an atom. The electron configuration of neutral elements and ions can be used to identify them.
The configuration [kr] 4d3 belongs to molybdenum III ion while the configuration [kr] 5s 2 4d2 belongs to zirconium atom all in the transition series.
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