Intermediate
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Question 1 of 51. Question
Isotopes have the same number of protons, but differ in ……………..
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Question 2 of 52. Question
Copper has two natural Isotopes, Cu-63 and Cu-65. What is the percentage by mass of the heavier isotope if the relative atomic mass of copper is 63.54?
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Question 3 of 53. Question
Chlorine exists in two isotopic forms, Cl-37 and Cl-35 but its atomic mass is 35.5. This indicates the ratio of Cl-37 to Cl-35 is approximately…………….
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Question 4 of 54. Question
Which of the following options does not represent ground state electronic configuration of an atom?
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Question 5 of 55. Question
Identify the isotope that has 56 protons and 84 neutrons.
