What name is given to the elements in groups 3 through 12? how do their properties tend to compare with the elements to the left and right of these groups?

answer; /// i do believe that the correct answer is (c)nuclear bond

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.