Atoms of all the elements always contain in nucleus:5 A. Proton and neutron B. Neutron and electron C. Proton D. Neutron Submitted by: Shumail Bashir Read More Details about this Mcq:
What is the mass of one mole of Iodine?0 A. 74g B. 254g C. 127g D. 53g Submitted by: Shumail Bashir Read More Details about this Mcq: