Why the size of an anion is larger than the parent atom? 1 point Due to increased repulsion among the electrons Due to decrease in effective nuclear charge Due to increased in effective nuclear charge Both (a) and (b)
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The addition of electrons always results in an anion that is larger than the parent atom. When the electrons outnumber the protons, the overall attractive force that the protons have for the electrons is decreased.
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due to decrease in effective nuclear charge
Reason: Size is inversely proportional to effective nuclear charge. Effective nuclear charge experienced by electrons of anion is less than that of neutral atom . Thus size of anion is greater than that of neutral atom.
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