Which ground-state atom has an electron configuration described by the following

Question

Which ground-state atom has an electron configuration described by the following orbital diagram. Tellurium germanium selenium phosphorus potassium Which of the elements listed below has the greatest atomic radius? S B Al Si P Aluminum oxide, Al_2O_3, is used as a filler for paints and varnishes as well as m the manufacture of electrical insulators. Calculate the number of moles in 47.51 g of Al_2O_3. 2.377 mol 1.105 mol 2.146 mol 0.4660 mol 0.4207 mol Lithium forms compounds which are used dry cells, storage batteries and in high-temperature lubricants. It has two naturally occurring isotopes.^6Li (isotope mass = 6.015123 amu) and^7Li (isotopic mass = 7.016005 amu). Lithium has an atomic mass of 6.9412 amu. What is the percent abundance of lithium-6? 86.65% 92 53% 49.47% 7.47% 6.015% How many moles of H^+(aq) ions are present in 750 mL of 0.65 M hydrochloric acid? 1.2 mol 0.65 mol 0.87 mol 0.98 mol 0.49 mol What is the chemical name of FeSO_3. Iron(III) sulfate Iron sulfur trioxide Iron(II) sulfite Iron sulfate None of the above names is correct. A nonpolar covalent bond (i.e., pure covalent) would form in which of these pairs of atoms? Li-Br Se-Br H-Cl Na-Cl Br-Br Which of the following is the empirical formula for hexane, C_6H_4? CH_2.3 C_3H_7 C_12H_28 C_6H_14 C_0.43H A standard solution of 0.243 M NaOH was used to determine the concentration of a hydrochloric acid solution If 46.33 mL of NaOH is needed to neutralize 10.00 mL of the acid, what is the molar concentration of the acid in the original solution? 0.200M 0.563M 0.0313M 1.13M 0.243M

Explanation / Answer

30) selenium

31) Al

32)0.4660mole

34)0.49 mole

35) Fe (II) sulfite

36) SeBr

37) C3 H7

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