Write the general outer electronic configuration of s-, p-, d- and f- block elements.

It is given that: n(S) = 21, n(T) = 32, n(S ∩ T) = 11  We know that: n (S ∪ T) = n (S) + n (T) – n (S...

It is given that: n(X) = 40, n(X ∪ Y) = 60,  n(X ∩ Y) = 10  We know that:  n(X ∪ Y) = n(X) + n(Y) – n(X ∩ Y)  ∴ 60 = 40...

(−1)1−100−2 is the general electronic configuration of d-block elements

On the basis of electronic configuration  s block elements  p block elements  d block elements  f block elements

(i) Since n = 3, the element belongs to the 3rd period. It is a p–block element since the last electron occupies the p–orbital. There are four electrons in the p–orbital....

Transition metals have a partially filled d−orbital. Therefore, the electronic configuration of transition elements is (n − 1)d1-10 ns0-2. The non-transition elements either do not have a d−orbital or have a...

Carbon has 4 electrons in its outermost shell. It cannot lose 4 electrons to form C4+ cation because very high energy is required to remove 4 electrons leaving behind a...

It is given that: n(S) = 21, n(T) = 32, n(S ∩ T) = 11 We know that: n (S ∪ T) = n (S) + n (T) – n (S...

It is given that:  n(X) = 40, n(X ∪ Y) = 60, n(X ∩ Y) = 10  We know that: n(X ∪ Y) = n(X) + n(Y) – n(X ∩ Y)  ∴ 60 = 40...

(d) : The electronic configuration of 64Gd = [Xe]54 4f7 5d1 6s2