The number of electrons in M shell of an element with atomic number 24 is:
Correct answer: B. 13
- A. 8
- B. 13
- C. 12
- D. 14
Explanation
Electronic configuration of Atomic number 24 (Chromium) is :1s22s22p63s23p63d54s1 M-shell is the third shell, i.e. n = 3 Number of electrons in third shell are 2+6+5 = 13 Hence, the correct option is 13.
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