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Two isotopes of iodine are 125
53 I and 131
53 I.
Determine, for these two isotopes, the difference between the constituents of the
nuclei.
[1 mark]
0 1 . 2 A 131
53 I nuclide undergoes beta (β–
) decay to form a xenon nuclide.
State the nucleon number of the xenon nuclide.
[1 mark]
0 1 . 3 A 125
53 I nuclide decays by electron capture to form a tellurium nuclide.
State two differences between the constituents of the iodine nucleus and the tellurium
nucleus it decays into.
[2 m...
Stuvia-1113656-aqa-a-level-physics-paper-1-2019-question-paper
Last document update:
ago
Two isotopes of iodine are 125
53 I and 131
53 I.
Determine, for these two isotopes, the difference between the constituents of the
nuclei.
[1 mark]
0 1 . 2 A 131
53 I nuclide undergoes beta (β–
) decay to form a xenon nuclide.
State the nucleon number of the xenon nuclide.
[1 mark]
0 1 . 3 A 125
53 I nuclide decays by electron capture to form a tellurium nuclide.
State two differences between the constituents of the iodine nucleus and the tellurium
nucleus it decays into.
[2 m...
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