iscms/modlibisl view.php?id 2775530 10/31/2016 11:55 PM S2.3/1o Print Calculator

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iscms/modlibisl view.php?id 2775530 10/31/2016 11:55 PM S2.3/1o Print Calculator Periodic Table uestion 5 of 13 Sapling Learning Rank these elements according to first ionization energy. Highest ionization energy Incorrect. You have correctly identified the general trend, with the Br noble gas at the top and the alkali metal at the bottom. However, there are two exceptions within this general trend. The atom with the ns2 electron configuration is particularly stable and should move up one spot in the Ge ranking. Similarly, the atom with the ns np electron Ga configuration is particularly stable and should move up one spot in the ranking. Lowest ionization energy C Previous 8 Give up & View solution Try Again Next JExit partners privacy policy terms of use contact us help

Explanation / Answer

Ionization energy increases in periods and decreases in groups.

Thus, the decreasing ionization energy order of the given elements is,

Kr > Br > As > Se > Ge > Ca > Ga > K

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