Question

Part A

Arrange the elements in order of increasing first ionization energy: Si, F, Sn, O.

Rank elements from smallest to largest. To rank items as equivalent, overlap them.

Help Reset Si F Sn O Smallest Largest The correct ranking cannot be determined.

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Part B

Arrange the isoelectronic series in order of decreasing radius: Cl−, K+, S2−, Ca2+.

Rank ions from largest to smallest. To rank items as equivalent, overlap them.

Help Reset K+ Ca2+ S2− Cl− Smallest Largest The correct ranking cannot be determined.

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Part C

Pick the larger species from each pair.

Match the words in the left column to the appropriate blanks in the sentences on the right.

Help Reset Ba Ba2+ Sr2+ P Se2− Ni2+ P3− Ni When comparing the two species P and P3− the larger of the two is . When comparing the two species Ba and Ba2+ the larger of the two is . When comparing the two species Ni and Ni2+ the larger of the two is . When comparing the two species Se2− and Sr2+ the larger of the two is .

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Part D

Rank the following elements by electron affinity, from most positive to most negative EA value.

Rank from most positive to most negative. To rank items as equivalent, overlap them.

Hints

Help Reset sodium chlorine antimony argon tellurium Most negative Most positive The correct ranking cannot be determined.

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Answer 1