Question

Atomic number of Pd is 48. In the same group the atomic number of elements placed above and below Pd will be --
a) 37.67 b) 29,79 c) 39,69 d) 28,78​

Answer 1

Answer:

correct ans is b) 29 ,79

Explanation:

Ag with atomic number 47 is present in the d−block. Element above Ag is 47−18=29, element with atomic number 29,i.e.; Cu and element below Ag is 79 which is atomic number of Au

The element should have been 47+18=65 (Tb), but is present in lanthanides⟶ inner transition elements.