Correct Answer: Option C
Reason:
<span>The </span>Pauli Exclusion Principle<span> states as '<em>in an atom or molecule, no two electrons can have the same four electronic quantum numbers. Further, an orbital can contain a maximum of only two electrons, the two electrons must have opposing spins.</em>'
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Thus, it can be seen that in option C, electrons in last 2 subshell have electrons with same spin, which is a violation of Pauli Exclusion Principle .
The answer to 4 is A.
The answer to 5 is C.
Explanation:
most of the x-rays are absorbed in thermosphere of earth's atmosphere
No. of moles = mass / molar mass
= 100/35.5
