Assertion (A) : Each electron in an atom has two spin quantum number
Reason (R ) : Spin quantum numbers are obtained by solving schrodinger wave equation

Options

A. If both (A) and (R ) correct and (R ) is the correct explanation for (A)
B. If both (A) and (R ) correct and (R ) is the correct explanation for (A)
C. If (A) is correct but (R ) is incorrect
D. If both (A) and (R ) are incorrect

Explanation

To solve the question, we need to analyze both the assertion and the reason provided.

### Step 1: Analyze the Assertion (A)
The assertion states that "Each electron in an atom has two spin quantum numbers."

- The spin quantum number (denoted as \(s\)) can take on one of two values: +1/2 or -1/2. This means that each electron can have one of two possible spin states, but it does not mean that each electron has two spin quantum numbers. Instead, each electron has one spin quantum number that can represent either of those two states.

**Conclusion**: The assertion is incorrect.
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