Which of the following is NOT true about isotopes? O Isotopes of the same element have the same number of protons and electrons. O Isotopes of the same element have the same number of protons, neutrons and electrons. O Isotopes of the same element have the same 2 number. 0 Isotopes of the same element have different A numbers. How many neutrons does the following isotope of nitrogen have? lgN (5 points) 0 7 O 8 O 15 O 22 A radioisotope of ctitious element A, 33A, undergoes positive beta decay (positron emission). Which of the following is a possible product? In the nuclear equation: 83 211 Bi - He + --- The characteristics of the missing particle are O Z = 81, A = 207 O Z = 85, A = 215 O Z = 215, A = 85 O Z = 207, A = 81 QUESTION 19 When U-238 transmutates into Th-234, this represents 238 234 U Th 92 90 O electron capture O negative beta decay O an alpha decay O gamma decay