1. Write the electronic configuration for each atom: a. S b. K c. Ne d. Al 2. Wh
ID: 579552 • Letter: 1
Question
1. Write the electronic configuration for each atom: a. S b. K c. Ne d. Al 2. Which element in the 2nd Period (2nd row) of the periodic table has: Only one 2s electron Only one 2p electron a. b. Only three 2p electrons d. c. Six 2p electrons List the atomic radius with units for each element. Find and use the table in your textbook. the table in your book. (Hint: you may need this table on an exam.) Do the numerical 3. values agree with the trend we have studied? a. K b. Cr c. Ga d. Kr List the electron affinity with units for each element. Find and use the table in your textbook. Mark the table in your book. (Hint: you may need this table on an exam.) Do the numerical values agree with the trend we have studied? 4. a. F c. Br d. I 5. uist the first ionization energy with units for each element. Find and use the table in your textbook. Mark the table in your book. (Hint: you may need this table on an exam.) Do the numerical values agree with the trend we have studied? a. Be b. Mg c. Ca d. SrExplanation / Answer
1.
(a) S (Z=16) E.C is 1s2 2s2 2p6 3s2 3p4
(b) K (Z=19) E.C. is 1s2 2s2 2p6 3s2 3p6 4s1
(c) Ne (Z=10) E.C. is 1s2 2s2 2p6
(d) Al (Z=13) E.C. is 1s2 2s2 2p6 3s2 3p1
2.
(a) Li (z=3) E.C. is 1s2 2s1
(b) B (Z=5) E.C 1s2 2s2 2p1
(c) N (Z=7) E.C 1s2 2s2 2p3
(d) Ne (Z=10) E.C is 1s2 2s2 2p6
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