First group how many radioactive elements are present

Common radioactive elements present in human body are

Radioactive element of group 17 is

Determine the product of metalloids and the radio-active elements present in group-13 & group -14

The atomic number (Z) of an element is 25. In its ground state, how many electrons are present in "N" shell ?

How many polypeptide chains are present in gamma immunoglobulin or How many variable segments are present in the basic structure of antibody molecule

How many types of antibodies are present ?

Name the radioactive element of Group 16 .

How many centromeres are present in a bivalent and how many bivalents are present in a diploid cell of human females respectively?

Which of the following is a radioactive element :

How many electrons are present in sulphur ?