Class IX An ionic compound is electrically positively charged neutral negatively charged none of above Mass of an atom relative to C-12 is atomic mass atomic number nucleon number relative atomic mass Gram atomic mass of Zn is 23g 12g 63.54g 56.67g Formula mass of NaCl is 57.5 amu 58.5 amu 59.5 amu 60.0 amu A free radical has odd no. of electrons even no. of electrons A and B both none of above Do you really want to submit this quiz? Cancel Submit Quiz
