WAEC Chemistry 2014 Objective — Question 10
Question 10 of 50 from the West African Examinations Council (WAEC) Chemistry 2014 Objective paper, with the correct answer and a full explanation.
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The relative atomic mass of chlorine is not a whole number because it is the
- A. weighted average mass of all its various isotopesCorrect
- B. average mass of all the isotopes of the element
- C. the element has strong oxidizing ability
- D. the atom contains a higher number of neutrons than protons
Explanation
When the relative atomic mass of an element is not a whole number, it shows that the element occurs as isotopes; the value quoted is the weighted average mass of all its isotopes.
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