Choose the INCORRECT Statement About the Inert-Pair Effect

question 92

Multiple Choice

Choose the INCORRECT statement about the inert-pair effect.

• A) It explains why gallium tends to have the +3 oxidation state but thallium is most often in the +1 state.
• B) It can be explained that the bond energies and lattice energies associated with the atoms and ions at the bottom of the groups are not sufficiently large to off-set the ionization energies of the ns2 electron.
• C) The effect is manifested by ions not losing the outermost pair of electrons.
• D) Of the group 14 (4A) metals, only tin exhibits the inert-pair effect.
• E) For any group, the inert pair effect is more prominent as the period number increases.

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