Select the most accurate ranking of metallic character among the elements. Group of answer choices Rb...

Select the most accurate ranking of metallic character among the elements.

Group of answer choices

Rb > Mo = Re > Te > Pb

Fr > Fe > Zr > Sb > Ne

Ne < Sb < Fe < Zr < Fr

Ca < Ba < Fr < K < Li

Expert Solution

Answer: Option (3) i.e. Ne < Sb < Fe < Zr < Fr is correct answer.

Reason: As we move from left to right across the period of periodic table, Metallic character Decreases whereas As we move from top to bottom across the group, Metallic character increases. So, Here Ne is an element present on upper-right side of periodic table having no metallic property Hence, least metallic. Sb is in metalloid category having more metallic character than Ne. Fe is in mid of periodic table hence, more metallic than Sb. Zr is much more on left side of table showing more metallic character than Sb and Fr being most metallic but radioactive so uncertain.

Option (1) i.e. Rb > Mo = Re > Te > Pb is wrong because Te here is shown to be more metallic than Pb but actually Te is a metalloid having less metallic properties than Pb which is a metal.

Option (2) i.e. Fr > Fe > Zr > Sb > Ne is wrong because here it is shown that Fe is more metallic than Zr but actually Zr is more metallic than Fe.

Option (4) i.e. Ca < Ba < Fr < K < Li is wrong because Li here is shown to have most metallic character but actually Li is less metallic than K and Fr.

queen_honey_blossom answered 2 years ago

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