SCIENCE
PHYSICAL SCIENCES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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John knows that the atomic number of the element Chlorine, Cl, is 17. He also knows that one particular isotope of chlorine has a mass of 35. How many neutrons can be found in the nucleus of this isotope of chlorine?
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17
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18
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35
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70
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Explanation:
Detailed explanation-1: -Number of neutrons = A-Z = 35-17 = 18. Q. Chlorine is an element of atomic number 17.
Detailed explanation-2: -Chlorine is an element of atomic number 17. It is a mixture of two isotopes having a mass number of 35 and 37.
Detailed explanation-3: -For example, every chlorine atom has 17 electrons and 17 protons; its atomic number is 17.
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