Most transition elements form monatomic ions that are not:
A)isoelectronic with any other cations
B)isoelectronic with any noble gas
C)isoelectronic with any neutral atom
D)isoelectronic with any other species
E)isoelectronic with any other transition metal ion

Question

Quizplus · Accepted Answer

Isoelectronic means having the same number of electrons. Noble gases have a full valence shell of electrons, making them stable and unreactive. Therefore, monatomic ions that are isoelectronic with noble gases are also stable and unreactive. Most transition elements form monatomic ions that are not isoelectronic with any other cations, neutral atoms, or transition metal ions, but they can form ions that are isoelectronic with noble gases (e.g. Fe2+ is isoelectronic with Ar).

Most Transition Elements Form Monatomic Ions That Are Not