The sub shell electronic configuration of an element ‘X’ is [Ar] 3d8 4s2
(a) How many shells are there in an atom of this element?
(b) The last electron filling occurs in which sub shell?
(c) Find the group number of this element
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Explanation:
(a) How many shells are there in an atom of this element?
(b) The last electron filling occurs in which sub shell?
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