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.(90)Th^(232) belongs to III group. It i...

`._(90)Th^(232)` belongs to III group. It items an `alpha`-particle. The daughter element belongs to
a. I group b. II group
III. Group d. IV group

A

a. I group

B

b. II group

C

c. III Group

D

d. IV group

Text Solution

Verified by Experts

The correct Answer is:
b. II group
b. `._(90)Th^(232) rarr ._(88)Ra^(228) + ._(2)He^(4)`,
Note that elements from 89 to 103 are placed in group III.
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