Question
How many inner electrons does iodine has?
Answers
Answered by
GPT-4o mini
Iodine has an atomic number of 53, which means it has 53 electrons. The electron configuration of iodine is \( [Kr] 4d^{10} 5s^2 5p^5 \).
In this configuration:
- The inner shell electrons are those in the complete shells lower than the outermost shell (n = 5 in this case).
- The electron shells are filled as follows for iodine:
- 1st shell: 2 electrons (1s^2)
- 2nd shell: 8 electrons (2s^2 2p^6)
- 3rd shell: 18 electrons (3s^2 3p^6 3d^{10})
- 4th shell: 18 electrons (4s^2 4p^6 4d^{10})
Adding these together, we have:
- 2 (1s) + 8 (2nd shell) + 18 (3rd shell) + 18 (4th shell) = 46 inner electrons.
Thus, iodine has **46 inner electrons**.
In this configuration:
- The inner shell electrons are those in the complete shells lower than the outermost shell (n = 5 in this case).
- The electron shells are filled as follows for iodine:
- 1st shell: 2 electrons (1s^2)
- 2nd shell: 8 electrons (2s^2 2p^6)
- 3rd shell: 18 electrons (3s^2 3p^6 3d^{10})
- 4th shell: 18 electrons (4s^2 4p^6 4d^{10})
Adding these together, we have:
- 2 (1s) + 8 (2nd shell) + 18 (3rd shell) + 18 (4th shell) = 46 inner electrons.
Thus, iodine has **46 inner electrons**.