Which one of the following configuration s represents an alkaline earth elements

Question

Which one of the following configuration s represents an alkaline earth elements? Which one of the atoms in the set: O, F, Li, I, K has the largest first ionization energy? Which one of the ions below possesses a noble gas configuration? Partially filled d-orbitals are not part of a noble gas configuration. An element, whose chemical symbol is illegible, had 6 electrons surronding it in the Lewis symbol element among the following could it possibly be? The Lewis structure for water has lone pairs of electron Based on the position in the periodic table, which one of the following atoms would you expect to be the most electronegative? Which one of the following arrangements would best accommodate five electron pairs in the valence shell of a covalently bondede atom? Application of the concepts of vsepr theory leads to the prediction that the electron geometry of the PCl3, molecule is What is the hybridization used by either of the carbon atoms for bonding? The centeral atom in BrF5 uses sp3d2 hybridization. It must thererfore have sigmma- bonds and lone pair(s) of electrons in the valence shell of the centeral aom of the molecule. In the carbon monoxide molecule, A sample of a gas occupies a volume of 1.624 liters at STP. It was placed in a different vessel in which the pressure was measured as 797.3 torr when the temperature was 28.6 degree C. What was the volume of this new vessel, in liters? Based on the properties of the attached functional group, which one of the compounds below would you except to have hydrogen bonding?

Explanation / Answer

33. c [Ra]7s2

34. b F

35. d Ti4+

36. d Se

37. d 4

38. d O

39. e trigonal bipyramidal

40. d trigonal planar

41. d sp2

42. d 5,1

43. c 2

44. d 1.701litres use formula P1V1/T1= P2V2/T2

45. b CH3CH2NH2

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