Question:
How many electrons an atom have in M shell whose atomic number is 19?
How many electrons an atom have in M shell whose atomic number is 19?
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The number of electrons in a shell can be found using the electron configuration of an element.
Updated On: Apr 25, 2025
- 6
- 1
- 8
- 7
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The Correct Option is C
Solution and Explanation
The atomic number of 19 corresponds to the element Potassium (K). The electron configuration of potassium is:
\[
K(19) = 2, 8, 8, 1
\]
Thus, the M shell (third shell) contains 8 electrons.
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