There are three shells in the atom of an element. Its outermost shell contains 3 electrons, mass number and atomic number is 13 drw bohr model fo atom

There are three shells in the atom of an element. Its outermost shell

1.	There are three shells in the atom of an element. Its outermost shell contains 3 electrons, mass number and atomic number is 13 drw bohr model fo atom
Answer» TION:a medicine (such as penicillin or its derivatives) that inhibits the GROWTH of or DESTROYS MICROORGANISMS.