The element krypton (symbol: Kr) has several radioactive isotopes. Here listed are several of these Isotopes along with their half lives: Kr-73, 27s;
Kr-74, 11.5 min; Kr-76, 14.8 h; Kr-81, 210,000 y. Which of the isotopes is
most stable and which of the isotopes is most radioactive? Explain your
answer.

What is the difference between covalent bonds and ionic bonds? covalent bonds involve the sharing of electrons between atoms; ionic bonds involve the electrical attraction between charged atoms. covalent bonds involve the transfer of electrons between charged atoms; ionic bonds involve the sharing of electrons between atoms. covalent bonds involve the sharing of pairs of electrons between atoms; ionic bonds involve the sharing of single electrons between atoms. covalent bonds involve the sharing of electrons between atoms; ionic bonds involve the sharing of protons between charged atoms.