Radium decays to form radon. 226 88 Ra → 222 86 Rn + 4 2 He This type of nuclear decay is called .

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

under a microscope, cancer cells may look very different from normal cells. they often have different sizes and some may be larger than normal while others are smaller. cancer cells are often abnormally shaped and the control centre of the cell (the nucleus) may have an abnormal appearance.

i think? ?