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- 1. Multiple ChoiceA lone pair is defined asA pair of bonding electronsOne non-bonding electronA pair of non-bonding electronsA pair of electrons on the central atom
- 2. Multiple ChoiceWhat is the VSEPR theory used to predict?Bond StrengthPolarityMolecular ShapeElectronegativity
- 3. Multiple Choice
Which molecule would have this molecular geometry?BF3CH4PCl5CO2 - 4. Multiple ChoiceWhat molecule could this be?BF3CH4H2OCO2
- 5. Multiple ChoiceWhat molecule could this be?H2OCCl4PCl5NaCl
- 6. Multiple ChoiceWho could this molecule be?CH4CO2PCl5BF3
- 7. Multiple ChoiceWho could this be?CO2NH3H2SCH4
- 8. Multiple ChoiceWho could this be?H2ONH3CO2CH4
- 9. Multiple Choice
What molecular geometry would PH3 have?
Trigonal Pyramidal
Trigonal Bipyramidal
Bent
Linear
- 10. Multiple ChoiceHow many lone pairs of electrons are on the P atom in PF3?1230
- 11. Multiple Choice
Is this molecule polar?
Yes
No
- 12. Multiple Choice
Is this molecule polar?
No
Yes
- 13. Multiple ChoiceVSEPR theory is todetermine the number of bonding and lone pairs electronsdetermine the number of ECCdetermine the shape and geometry of moleculedetermine the lewis structure of molecule
- 14. Multiple ChoiceWhat is the measure of a tetrahedral bond angle?90 Degrees109.5 Degrees120 Degrees180 Degrees
- 15. Multiple ChoiceWhich of the following molecular shapes would have a bond angle of 180 Degrees?BentTrigonal PlanarTetrahedralLinear
- 16. Multiple ChoiceThe bond angle for a trigonal planar molecule is90 Degrees109.5 Degrees120 Degrees180 Degrees
- 17. Multiple ChoiceWhat is the bond angle for this molecule?109.512010790
- 18. Multiple ChoiceWill this molecule be polar or nonpolar? PH3polarnonpolar
- 19. Multiple ChoiceWhat molecular shape is the structure shown here? (BCl3)lineartrigonal planartetrahedraltrigonal pyramidal
- 20. Multiple ChoiceWhat molecular shape is the structure shown here? (H2O)tetrahedraltrigonal planarbenttrigonal pyramidal
- 21. Multiple ChoiceWhat molecular shape is the structure shown here? (NH4+)lineartrigonal planartetrahedraltrigonal pyramidal
- 22. Multiple ChoiceWhat is the molecular shape of a silicon dioxide molecule?lineartrigonal planarbenttetrahedral
- 23. Multiple ChoiceAccording to VSEPR, molecules adjust their shapes to keep which of the following as far away as possible?Pairs of valence electronsInner shell electronsMobile ElectronsElectrons closest to the nucleus
- 24. Multiple ChoiceA bond where electrons are NOT shared equally?polar covalentnonpolar covalent
- 25. Multiple ChoiceVSEPR stands for ________ theory.Valence Structure of Electron Pyramids and RegressionVaried Structures of Electrons Paired and ReplacedVaried Shell Energy of Protons and RadiationValence Shell Electron Pair Repulsion
- 26. Multiple ChoiceHow many electrons are shared in a triple bond?636 pairs5
- 27. Multiple ChoiceWhat two types of atoms make a covalent bond?2 Nonmetals1 Nonmetal and 1 Metal2 Metals2 Noble Gases
- 28. Multiple ChoiceHow are covalent bonds explained?When one atom takes the other atom's electronWhen the atom shares an electron with an another atomWhen the two nucleus mergeWhen the neutrons leave the nucleus
- 29. Multiple ChoiceWill this molecule be polar or nonpolar? CCl4polarnonpolar
- 30. Multiple ChoiceWill this molecule be polar or nonpolar? CS2polarnonpolar
- 31. Multiple ChoiceWhich of the following has a full valence shell?OxygenNeonBariumCarbon
- 32. Multiple ChoiceElements on the LEFT side of the periodic table will most likely form:Positive ionsNegative ionsNeutral IonsNone of these
- 33. Multiple ChoiceAn ionic bond forms when atoms ___________ electrons.gainshareincreasetransfer
- 34. Multiple ChoiceWhich type of bond has an equal sharing of electrons?Polar CovalentNon Polar CovalentIonicMetallic
- 35. Multiple ChoiceWhich type of bond has an unequal sharing of electrons?Polar CovalentNon Polar CovalentIonicMetallic
- 36. Multiple ChoiceWhich type of bond has a transfer of an electron from on atom to another?Polar CovalentNon Polar CovalentIonicMetallic
- 37. Multiple ChoiceAll chemical bonds involve two atoms sharing electrons.TrueFalse
- 38. Multiple ChoiceIf an atom loses two electrons what charge will it have?+ 2- 2+1-1
- 39. Multiple ChoiceIf an atom gains one electron what charge will it have?-2-1+1
- 40. Multiple ChoiceWhat is the number of valence electrons for Oxygen?8621
- 41. Multiple ChoiceHow many valence electrons in this structure?6547
- 42. Multiple ChoiceA bond that forms when electrons are transferred is called a/anionic bondcovalent bondhydrogen bond
- 43. Multiple Choice
The vertical (up and down) columns in the Periodic Table are called
groups
towers
periods
atomic numbers
- 44. Multiple ChoiceThe Modern Periodic Table of Elements is arranged byatomic massatomic numbervalence electronsnumber of isotopes
- 45. Multiple ChoiceSodium (Na) is found in period3241
- 46. Multiple ChoiceSodium (Na) is found in group1234
- 47. Multiple ChoiceThe atomic number tells you what? READ THE ANSWERS CAREFULLYonly the number of electronsonly the number of protonsonly the number of neutronsthe number of both electrons and protons in an atom.
- 48. Multiple ChoiceWhat does the 6 represent?atomic massatomic numberelement namechemical symbol
- 49. Multiple ChoiceWhat does 12.011 represent?atomic massatomic numberelement namechemical symbol
- 50. Multiple ChoiceWhat does the C represent?atomic massatomic numberelement namechemical symbol
- 51. Multiple ChoiceThese are found on the Periodic Table.CompoundsElementsMixtures
- 52. Multiple Choice
The horizontal (side to side) rows in the Periodic Table are called
groups
families
periods
atomic numbers
- 53. Multiple ChoiceWhich has the greater EN:
Cl or Al?ClAl - 54. Multiple ChoiceWhich has the greater EN:
N or C?CN - 55. Multiple ChoiceWhich has the greater EN:
H or F?HF - 56. Multiple ChoiceWhich of the following will have a larger radius than Zinc?GalliumAluminumMagnesiumStrontium
- 57. Multiple ChoiceWhich of the following will have a higher electronegativity than arsenic (As)?Carbon (C)Neon (Ne)Antimony (Sb)Germanium (Ge)
- 58. Multiple ChoiceWhich of the following will have a lower ionization energy than Scandium (Sc)?Helium (He)Titanium (Ti)Calcium (Ca)Magnesium (Mg)
- 59. Multiple ChoiceAs atoms of elements in group 16 are considered in order from top to bottom, the electronegativity of each successive element....decreasesincreasesremains the samenone of the above
- 60. Multiple ChoiceWhich atom has the largest atomic radius?potassiumrubidiumfranciumcesium
- 61. Multiple Choice
As you move down the periodic table atoms (atomic radius) get bigger. This is because ____________.
The atoms have more mass.
The atoms have more protons.
The atoms have more energy levels
The atoms have more nuetrons
- 62. Multiple Choice
As you move across the periodic table atoms (atomic radius) tend to get smaller because, ______________.
the atoms have more mass.
the atoms have less mass
the atoms have more protons.
the atoms have less electrons.
- 63. Multiple ChoiceAtoms that have a high electronegativity, _______________.give up their electrons more easily.hold on to their electrons more tightly.have more electron shells.
- 64. Multiple ChoiceThe atom with the largest atomic radius in Group 18 is -ArHeKrRn
- 65. Multiple ChoiceWhich statement correctly and completely identifies a trend?Atomic radius decreases across a period and increases down a group.Electronegativity decreases across a period and decreases down a group.Ionization energy increases across a period and increases down a group.Ionic radius increases across a period and increases down a group.
- 66. Multiple ChoiceThe element with the largest electronegativity in the halogens is -AtFClBr
- 67. Multiple Choice
The element with the lowest electronegativity in Period 3 is -
Na
Cl
Ar
Mg
- 68. Multiple ChoiceWhich periodic group has the smallest atomic radius?Alkali metalsHalogensNoble GasesTransition metals
- Answer choicesTagsAnswer choicesTags