Question

Decide if the compound/ion listed can satisfy the octet rule (duet rule for H), if so choose Satisfies Octet Rule from the drop down menu.
If the compound/ion cannot satisfy the octet rule for one of the atoms in the formula, choose one of the following three reasons why;
Too many valence electrons (more than eight), Too few valence electrons (fewer than eight), or Odd # of valence electrons.

SeO_2^2-

CCl₃

CO_3^2-

OCl₂

SO₂

AsF₅

Answer 1

SeO_{2^{2- -------------------------->}}  yes . satisfies octet rule

CCl₃ ---------------------> no . it doesn't satisfy octet rule . reason Odd number of valence electrons

CO_3^2- --------------------> yes .satisfies octet rule

OCl₂ ---------------------> yes .satisfies octet rule

SO₂ ----------------------> no . it doesn't satisfy octet rule . reason Too many valence electrons

AsF₅ ----------------------> no . it doesn't satisfy octet rule . reason Too many valence electrons

explanation :

see compounds structure in my image reason for all compounds.