Among the f -block elements
X : Atomic Number of element that has 4f⁷ electronic configuration in the trivalent state.
Y : Atomic Number of element that has 5f⁷ electronic configuration in the trivalent state
Find $\frac{Y - X}{4}$

Question

Among the f -block elements

X : Atomic Number of element that has 4f⁷ electronic configuration in the trivalent state.

Y : Atomic Number of element that has 5f⁷ electronic configuration in the trivalent state

Find $\frac{Y - X}{4}$

TestHub · Accepted Answer

X = Gd Atomic No = 64 Y = Cm Atomic No = 96

Chemistry - f-block Question with Solution | TestHub