Question

In 18 electron rule, metal to metal bond counts
O al two electron
O b. one electron pair per metal
с Two Electron Par
d. one electron per metal​

Answer 1

The 18 Valence Electron (18 VE) Rule or The Inert Gas Rule or The Effective Atomic Number (EAN) Rule: The 18-valence electron (VE) rule states that thermodynamically stable transition metal compounds contain 18 valence electrons comprising of the metal d electrons plus the electrons supplied by the metal bound ligands