Question

Part I: Periodic Trends of the Elements Using only the Periodic Table, make predictions about properties such as atomic size and to determine electron configurations for atoms and fons. For this section, consider these six elements: OF P Ar K Mg Description Circle ALL that apply, or "None of these" Support your answers. 1. Its atomic radius is larger than a sulfur atom. OF Mg P Ar K None of these 2. Its most stable ion: (a) has the same electron configuration as neon, and (b) has a larger radius than neon. OF Mg P Ar K None of these 3. Its atoms are diamagnetic (not attracted by a magnetic field). OF Mg P Ar K None of these OF Mg P Ar K 4. Its atoms have five valence electrons. None of these 5. Its graph of successive lonization energies: 0F Mg P Ar K None of these 2000 18000 ss000 34000 12000 10000 so00 s000 4000 200 Succeslve lonleaon energy . 1 6. What is the correct arrangement of the following atoms in order of increasing IE (first ionization energy): Ba, Cs, and F. Give a brief explanation of your choice. Ba < Cs < F Cs < Ba < F F< Cs < Ba a) b) c) d) F < Ba < Cs

Answer 1

D Its atomic than a radius ir larger Sulfur atam None of there. Mg, P ands are alements of same period and we know the size of atomo decreases on going from left K Mg ..... P... S deft to right I weight and K is having lepha shell sol I larger than S. @ Its most stable on Toomg P Ark/o2 if are having @ have some elechronic combine electronic configuration wration as neen, and None of these. as Ne, and (6) has a larger radius than fare larger than neon. I ne. Its atom are diamagnetic of my PA K mg has 2 e in its valence I shell, similarly None of these. Ar, has 18e-O in valence shell. I so, no unparned e- Its atoms have five To f Mg @ Ark I P, has 35² 3p3 valence electrons. None of there electronic configurat Time

hope this helps!