some atoms are exceptions to the octet rule by having an expanded octet. which characteristic is needed for…

some atoms are exceptions to the octet rule by having an expanded octet. which characteristic is needed for an atom to have an expanded octet?\nthe atom has empty d - orbitals.\nthe atom has more than eight valence electrons before bonding.\nthe atom has empty p - orbitals.\nthe atom has fewer than eight valence electrons after bonding.

some atoms are exceptions to the octet rule by having an expanded octet. which characteristic is needed for an atom to have an expanded octet?\nthe atom has empty d - orbitals.\nthe atom has more than eight valence electrons before bonding.\nthe atom has empty p - orbitals.\nthe atom has fewer than eight valence electrons after bonding.

Answer

Brief Explanations:

Atoms with empty d - orbitals can accommodate more than 8 electrons and have an expanded octet. Atoms usually have 8 or fewer valence electrons before and after bonding, and empty p - orbitals are not related to an expanded octet.

Answer:

The atom has empty d - orbitals.