Question

please only answers for questions 1-23. No work needed

1) Give the ground state electron configuration for the ion of Ba. A) [Krj5s24d 105pfes2 B) (KrjS24d105ph26p2 9(KrjS24d105p6 D) Kr525p E) [Kr]5s24d105pés 2) Choose the valence orbital diagram that represents the ground state of Se A) 1 11 1 4s 4p в) 1 11 4s 4p C) 1L 3s Зр D) 11 1L 1 3s Зр E) 1 1 4s 4P 3) How many valence electrons do the alkaline earth metals possess? B) 2 A) 1 C)7 D) 6 E) 8 4) Electrons filling up the orbitals from low to high is known as (the) A) Heisenberg uncertainty principle. C) Hund's rule. B) Aufbau principle. D) Pauli exclusion principle. 5) Place the following in order of decreasing IE1 Cs Mg Ar A) Cs> Mg Ar B) Ar Mg Cs C) Mg > Ar> Cs D) Mg> Cs >Ar E) Cs> Ar Mg

Answer 1

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