Question

please answer following questions please​

Answer 1

Answer:

6 - each of 2 or more form of the same element that contains equal number of protons but different number of nutreon in their nuclei and hence differ in relative atomic mass but not in chemical properties - gamma ray irradiation of tumors

Answer 2

Answer:

isotopes are two or more types of and atoms that have same atomic numbers and position in th periodic table and that differ in nucleon numbers due to different numbers of neutrons in their nuclei..

any two use of isotope-

An isotope of an uranium acts as a fuel in nuclear reactors..

In the treatment of cancer an isotope of cobalt is used..

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Hope it helps :D