4. Which of the following chemical families has the strongest tendency to gain electrons?
O a) Noble gases
O b) Alkali metals
O c) Transition metals
d) Halogens

D. Halogens

Explanation:

I put it in my test my teacher said it was right ong.

the correct option is c.

isotopes refers to different forms of the same element with the same atomic number but different mass number as a result of difference in their neutron numbers. isotopes have different relative atomic mass but share the same chemical properties.