Question

state effective atomic number( ean) rule.

Answer 1

effective atomic number EAN represent the total number of electrons surrounding the nucleus of a metal atom in a metal complexes.

Answer 2

Effective atomic number (EAN), number that represents the total number of electrons surrounding the nucleus of a metal atom in a metal complex. ... The EAN rule is often referred to as the “18-electron rule” since, if one counts only valence electrons (6 for Co3+ and 2 × 6 = 12 for 6 NH3), the total number is 18.