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While the most common isotope of nitrogen has a mass number of 14 (nitrogen-14), a
Chapter 1, Problem 1.1(choose chapter or problem)
While the most common isotope of nitrogen has a mass number of 14 (nitrogen-14), a radioactive isotope of nitrogen has a mass number of 13 (nitrogen-13). Nitrogen-13 is used in PET (positron emission tomography) scans by physicians to monitor brain activity and diagnose dementia. For each isotope, give the following information:
(a) the number of protons;
(b) the number of neutrons;
(c) the number of electrons in the neutral atom; and
(d) the group number.
Questions & Answers
QUESTION:
While the most common isotope of nitrogen has a mass number of 14 (nitrogen-14), a radioactive isotope of nitrogen has a mass number of 13 (nitrogen-13). Nitrogen-13 is used in PET (positron emission tomography) scans by physicians to monitor brain activity and diagnose dementia. For each isotope, give the following information:
(a) the number of protons;
(b) the number of neutrons;
(c) the number of electrons in the neutral atom; and
(d) the group number.
ANSWER:Step 1 of 4
(a)
The atomic number of nitrogen atom is 7. Hence, the number of protons in the nitrogen atom must be equal to atomic number.
Therefore, the number of protons in nitrogen - 13 is 7and the number of protons in nitrogen - 14 is 7.