26. What is difference between the electronic configurations
of transition and inner-transition elements?
(H.P.S.B. 2010)
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26. What is difference between the electronic configurations
of transition and inner-transition elements?
(H.P.S.B. 2010)
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Explanation:
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SWER
The elements which lie in the middle of the Group II A elements and the Group II B elements in the present day periodic table are the d block elements. The d-block elements may also be known as Transition Elements as they are elements which lie between the metals and non-metals of the periodic table.
Transition elements are in the d-block and have valence electrons in the d-orbital's. They can form multiple oxidation states and form different ions. Iron, Cobalt, and Nickel are ferromagnetic.
The general electronic configuration of the transition element is given as follow: (n−1)d
1−10
ns
1−2
Inner transition elements are in the f-block and have valence electrons in the f-orbital's. They consist of the Lanthanides and the Actinides. The Actinides are radioactive and mostly synthetic.
The electronic configuration of the inner tansition element can be given as follow:
(n−2)f
1−14
(n−1)d
0−1
ns
2
Explanation:
trans elements : (n-1)d1-10 ns1-2
inner transition: 6s2 common bt variable occupancy of 4f level