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Chemistry
The only Lanthanoid which is radioactive
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Q. The only Lanthanoid which is radioactive
KCET
KCET 2022
The d-and f-Block Elements
A
Promethium
88%
B
Praseodymium
3%
C
Lanthanum
5%
D
Cerium
3%
Solution:
Correct answer is (a) Promethium