It show lustrous, shiny, hard, and brittle properties. Unofficial and external sites are not endorsed by Southeastern Louisiana University.Define : Antimony is metalloid which is place in between Arsenic and Bismuth. Parkinson |Ĭopyright © 2007 Southeastern Louisiana University | Atomic Structure Lesson | Main Lessons Page | Email Dr. Press the button below to score your test: Choose the correct Lewis dot structure for Si -2:įrom the list of elements, choose ALL that are paramagnetic:įrom the list of elements, choose ALL that are diamagnetic:.Choose the correct Lewis dot structure for K +1:.Choose the correct Lewis dot structure for I.Choose the correct Lewis dot structure for Sb +2:.Choose the correct Lewis dot structure for Al -2:.Choose the correct Lewis dot structure for Ne:.Choose the correct Lewis dot structure for Mg:.Which of the following represents the proper order of electronegativity increasing from smallest to largest?.Which of the following represents the proper order of electron affinity increasing from smallest to largest?.Which of the following represents the proper order of ionization energy increasing from smallest to largest?.Which of the following represents the proper order of atomic radius increasing from smallest to largest?.Which of the following represents the proper order of ionic radius increasing from smallest to largest?.Label each of the following shaded regions of the periodic table with the type of orbital into which the outermost valence electron is being placed (s, p, d, or f):.In the box to the right, enter the symbol of first element in the periodic table to have 3 1/2 completed sets of p-orbitals:.In the box to the right, enter the symbol of first element in the periodic table to have two completed sets of d-orbitals:.In the box to the right, enter the symbol of first element in the periodic table to have 9 s-electrons:.Write the complete electronic configuration for Tungston (W) Write the complete electronic configuration for the anion of Antimony: Sb -2 Write the complete electronic configuration for the cation of Zirconium: Zr +1 Write the complete electronic configuration for Bismuth (Bi) Write the complete electronic configuration for Iron (Fe) Write the complete electronic configuration for Carbon (C) From the list below, choose the highest energy orbital that is able to penetrate the core shielding and fill completely before the 4f orbital:.Which of the following is an excited state electronic configuration?.The number of orbitals available on an energy level is a function of the principal quantum number. Orbitals of a many-electron atom are occupied in the sequential order of their energy. No two electrons on the same atom can have all the same quantum numbers.Įlectrons going into degenerate orbitals are first placed in separate orbitals with the same spin.Īll orbitals on the same energy level are degenerate. According to quantum theory, the relative energy of orbitals allowed on the n = 3 energy levels in a single-electron atom such as hydrogen are:.The effective nuclear charge ( Z eff) for the element Si is:.The effective nuclear charge ( Z eff) for the element Na is:.In each of the following, determine the number of i.)protons, ii.)neutrons, and iii.)electrons:.Correct answers MUST be within ± 1 unit of the third significant figure or they are scored as wrong.
Answer all non-integer questions to at least 3 significant figures. Do NOT use commas or scientific notation when entering large numbers. If you are stumped, answers to numeric problems can be found by clicking on "Show Solution" to the right of the question.ĭo NOT type units into the answer boxes, type only the numeric values.
If you wish, you may return to the test and attempt to improve your score. A new page will appear showing your correct and incorrect responses. When you have completed every question that you desire, click the " MARK TEST" button after the last exercise. Questions left blank are not counted against you. Answer the following to the best of your ability.
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