Given the three statements below, pick the best answer.
I. Be is larger than Li
II. Be⁺ is larger than Li
III. O^{2 -} is larger than F^-

Question

Given the three statements below, pick the best answer. I. Be is larger than Li II. Be⁺ is larger than Li III. O^{2 -} is larger than F^-

Quizplus · Accepted Answer

Be is smaller than Li due to increased nuclear charge. Be⁺ is smaller than Li because it has lost an electron, increasing effective nuclear charge. O^{2 -} is larger than F^- because it has gained more electrons, increasing electron-electron repulsion.

Given the Three Statements Below, Pick the Best Answer