Chem 230 Exam 4 Questions With Complete Solutions

What is the symbol for a proton? P can also be replaced with an H What is the symbol for a neutron? What is the symbol for an electron? e can also be replaced with a β What is the symbol for a positron? e can also be replaced with a β What is the symbol for an α particle? He can also be replaced with an α What is the symbol for a gamma particle? What is the charge on an alpha ray? 2+ What is the charge on a beta ray? 1- What is the charge on a gamma ray? 0 When does beta decay occur? When the isotope has too many electrons in the nucleus Where is alpha decay common? heavy radioactive isotopes where the atomic number is greater than 83 When does positron emission occur? When the nucleus has too few neutrons. When does electron capture occur? When the nucleus has too few neutrons. What is gamma emission? The emission of high energy electromagnetic reduction. Goes from excited state to ground state and emits a gamma particle. what is a radioactive decay series? a sequence of nuclear reactions that ultimately results in the formation of a stable isotope. Describe the uranium decay series? 14 reactions with 8 alpha and 6 beta particles being emitted.