Problem: Cobalt–60 and iodine–131 are radioactive isotopes commonly used in nuclear medicine. How many protons, neutrons, and electrons are in atoms of these isotopes? Write the complete electron configuration for each isotope.

FREE Expert Solution
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FREE Expert Solution

To solve this problem recall mass number:

mass number = # of neutrons + # of protons

# of neutrons = mass number - # of protons

And that in a neutral element:

atomic # = # of protons = # of electrons

When writing electron configuration:

s → maximum of 2 electrons
→ maximum of 6 electrons
→ maximum of 10 electrons


Cobalt-60:

atomic number = 27

95% (244 ratings)
Problem Details

Cobalt–60 and iodine–131 are radioactive isotopes commonly used in nuclear medicine. How many protons, neutrons, and electrons are in atoms of these isotopes? Write the complete electron configuration for each isotope.

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Our tutors have indicated that to solve this problem you will need to apply the The Electron Configuration concept. You can view video lessons to learn The Electron Configuration Or if you need more The Electron Configuration practice, you can also practice The Electron Configuration practice problems .

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