Chemistry · Structure of atom
हिन्दीWhat is the ground state valence electronic configuration of chromium (Cr, atomic number 24)?
Correct answer · Option 4
\( 3d^5 4s^1 \)
Explanation
Chromium has a half-filled extra stability configuration of \( 3d^5 4s^1 \) instead of \( 3d^4 4s^2 \).