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Unformatted text preview: nucleus pulls them closer and the ion size shrinks. K Ar Cl S 2 These ions are isoelectronic with each other. (They all have the same number of electrons.) S 2 has the smallest nucleus and K the largest nucleus. So K will be the smallest and S 2 the largest. A larger nucleus will pull the electrons closer making the atom smaller. 8. Which of these orbitals experiences the largest screening effects? 1 s , 2 s , 2 p , 4 f 4 f 9. Which electron has a larger Z eff a. A 1 s electron in H or a 1 s electron in Li? Li because the nucleus in Li is larger. b. A 2 p electron or a 3 p electron of S? 2 p . The 3 p electron is further from the nucleus on average and will experience more screening effects. 10. Which of these elements has the most metallic character? Li, Na, Rb, Mn, Cu Rb...
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This note was uploaded on 11/21/2011 for the course CHEM CHEM 1201 taught by Professor Rupnik during the Spring '11 term at LSU.
- Spring '11