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STATEMENT-1 : The 19^(th) electron in po...

STATEMENT-1 `:` The `19^(th)` electron in potassium atom enters into 4s-orbital than in 3d-orbital.
and
STATEMENT-2 `:` `(n+1l)` rule is followed for determining the orbital of lowest energy state.

A

Statement-1 is True, Statement-2 is True, Statement-2 is a correct explanation for Statement-1

B

Statement-1 is True, Statement-2 isTrue, Statement-2 is NOT a correct explanation for Statement-1

C

Statement-1 is True, Statement-2 is False

D

Statement-1 is False , Statement-2 isTrue

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Knowledge Check

  • Assertion : The 19^(th) electron in potassium atom enters into 4s orbital and not the 3d - orbital. Reason : (n+1) rule followed for determining the orbital of the lowest energy state.

    A
    If both assertion and reason are true and reason is the correct explanation of assertion.
    B
    If both assertion and reason are true but reason is not the correct explanation of assertion.
    C
    If assertion is true but reason is false.
    D
    If both assertion and reason are false.

  • Assertion. The 19th electron in potassium atom enters into 4 s-orbital and not the 3 d-orbital Reason. (n +l) rule is followed for determining the orbital of the lowest energy state.

    A
    If both assertion and reason are true, and reason is the true explanation of the arrertion
    B
    If both assertion and reason are true, but reason is not the true explanation of the assertional
    C
    If assertion is true, but reason is false
    D
    If both assertion and reason are false

  • Assertion : The 19th electron in potassium atom enters 4s-orbital and not 3d orbital. Reason : The energies of the orbitals can be compared with the help of (n+l) rules.

    A
    if both assertion and reason are correct and reason is correct explanation for assertion .
    B
    If both assertion and reason are correct but reason in not correct explanation for assertion.
    C
    If assertion is correct but reason is incorrect.
    D
    If both assertion and reason are incorrect.

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