JEE Main 2025 Chemistry question
Correct statements for an element with atomic number 9 are
A. There can be 5 electrons for which = + and 4 electrons for which = -
B. There is only one electron in orbital
C. The last electron goes to orbital with n = 2 and = 1
D. The sum of angular nodes of all the atomic orbitals is 1
Choose the correct answer from the options given below :
Answer: (3)
Solution
Electronic configuration is . There are 5 electrons with ms=+1/2 and 4 with ms=-1/2 (A true), 2
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