GOOD MORNING CLASS , TODAY WE ARE GOING TO LEARN ABOUT HUND'S RULE
MADAM, WHAT IS HUND'S RULE ?
HUND'S RULE STATES THAT WHEN ELECTRONS ARE ADDED TO THE ORBITAL OF EQUIVALENT ENERGY ,EACH ORBITAL ARE FILLED SINGLY WITH ELECTRON OF THE SAME SPIN BEFORE IT IS PAIRED.
CAN YOU GIVE SOME EXAMPLE OF HUND'S RULE
NITROGEN ATOM , N [ PROTON NUMBER=7 ]
ELECTRON CONFIGURATION FOR NITROGEN IS 1s , 2s , 2p
THE ELECTRON IN HALF FILLED ORBITALS HAVE THE SAME SPINS , THAT IS , PARALLEL SPINS . FOR DEGENERATE ORBITALS , HALF-FILLED ORBITALS IS MORE STABLE THAN THE PARTIALLY-FILLED .
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