Question

1.lodine 131 is used to treat thyroid deficiency. 2.Carbon isotope is used in nuclear reactors for fission reaction.
3. Alpha, neutron and beta are the three radiations given by a radioactive element. 4.Workers working in nuclear reactors should use jackets made up of lead.
5. Element cannot have negative valency ​

Answer 1

Answer:

yes, these all are correct Statment.

Answer 2

Answer:

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