MHT CET202410 May 2024Evening ShiftChemistryd and f Block ElementsActual
Identify false statement about transition elements.
Options
- AThese exhibit properties between those of s and p block elements.
- BAll these elements are grouped as 3d to 6 d series.
- C5 d series is comprised of all elements from La (Z=57) to Hg (Z=80) .
- DElements of 6 d series belongs to 7^ th period of periodic table.
Correct answer
C. 5 d series is comprised of all elements from La (Z=57) to Hg (Z=80) .
Step-by-step solution
The 5 d series of transition elements includes elements from Z = 72 (Hf, Hafnium) to Z = 105 (Db, Dubnium), not from Z = 57 (La, Lanthanum) to Z = 80 (Hg, Mercury). The elements from Z =57 to Z =71 are the lanthanides (rare earth elements), and Hg ( Z = 80) is a part of the group 12 elements, not the 5d transition series.