A chemical reaction produces a molecule in which all of the atoms have a stable configuration. Which molecule could be the product of the reaction?

A. MgBr
B. KCI2
C.SiO
D. PH3

The molecule that could be the product of the reaction is D. PH3 (phosphine). Phosphine has a stable configuration, as the phosphorus (P) atom is surrounded by three hydrogen (H) atoms, satisfying the octet rule.