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

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

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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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What scientific concept do you need to know in order to solve this problem?

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

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Our data indicates that this problem or a close variation was asked in Chemistry - OpenStax 2015th Edition. You can also practice Chemistry - OpenStax 2015th Edition practice problems.