CHEM 1201 Chapter : Practice Problems Ch 01 Ch 02
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54 xe: 132, 132, 54, 54, 54, 132, 78, 78, 54, 54, 54, 78, 78, 78, 132, an atom of the most common isotope of gold, ________ electrons: 197, 79, 118, 118, 79, 39, 79, 197, 197, 79, 118, 118, 79, 118, 79, which combination of protons, neutrons, and electrons is correct for the isotope of copper, 63. Rh: the element x has three naturally occurring isotopes. The average atomic mass of the element is ________ amu: 219. 7, 220. 4, 220. 42, 218. 5, 221. 0, element x has three naturally occurring isotopes. The masses (amu) and % abundances of the isotopes are given in the table below. The average atomic mass of the element is ________ amu: 41. 54, 39. 68, 39. 07, 38. 64, 33. 33, the element x has three naturally occurring isotopes. The isotopic masses (amu) and % abundances of the isotopes are given in the table below.
