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A heavier element containously emits `alpha`-and `beta`-particles. The finally stable element may belong to: a. 14th group b. 16th group c. 10th group d. 12 th groupA. a. 14th groupB. b. 16th groupC. c. 10th groupD. d. 12 th group |
Answer» Correct Answer - a. 14th group a. Neptunium series ends at `Bi` (15th group) and rest all series terminate at `Pb` (14th group) |
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