Question

The electronic configuration of Pd (Z = 46) is

• A. [Kr] \( 4d^8 5s^2 5p^0 \)
• B. [Kr] \( 4d^9 5s^1 5p^0 \)
• C. [Kr] \( 4d^{10} 5s^0 5p^0 \)
• D. [Kr] \( 4d^5 5s^2 2p^3 \)
• E. [Kr] \( 4d^6 5s^2 5p^2 \)

Hint:

Remember that for elements with higher atomic numbers, the \( d \)-subshell often fills before the \( s \)-subshell.

Answer 1

The Correct Option is C

The electronic configuration of palladium (Pd) with atomic number 46 is as follows:
- Palladium has a filled \( 4d \) subshell and an empty \( 5s \) and \( 5p \) subshells in the ground state configuration.
- The correct configuration is \([Kr] \, 4d^{10} 5s^0 5p^0\), which reflects the stable, filled \( 4d \)-subshell.

Thus, the correct answer is (C).