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- 1. Multiple ChoiceCovalent bonds are between...Metal and Non-metalNon-metal and Non-metalMetal and Metal
- 2. Multiple ChoiceIonic bonds are between...Metal and Non-metalNon-metal and Non-metalMetal and Metal
- 3. Multiple ChoiceWhy do elements bond?To be friendsTo create a new elementTo become stable
- 4. Multiple ChoiceWhat is a valence electron?The sum of neutrons and protons.The # of electrons in the last shell.A type of bond.A popular compound.
- 5. Multiple Choice
Where are metals located on the periodic table?BlueGreenRed - 6. Multiple ChoiceWhere are the nonmetals located on the periodic table?BlueRedGreen
- 7. Multiple ChoiceWhere are the metalloids located on the periodic table?BlueRedGreen
- 8. Multiple ChoiceWhich of the following is the correct Lewis dot structure for the molecule fluorine (F2)?ABCD
- 9. Multiple ChoiceWhich of the following is the correct Lewis structure for the compound PBr3?structure Astructure Bstructure Cstructure D
- 10. Multiple ChoiceWhich of the following is the correct Lewis structure for CH2O?Option AOption BOption COption D
- 11. Multiple ChoiceWhich of the following is an ionic bond?H3NCaCl2NO2SCl
- 12. Multiple Choice
Which is the correct structure for ammonia NH3?
Pictures correspond with a-d.
Option A.
Option B.
Option C.
Option D.
- 13. Multiple Choice
Choose the structure that forms a triple bond. You will need to write these down and/or look in your notes.
Hydrogen
Fluorine
Oxygen
Nitrogen
- 14. Multiple Choice
Hydrogen needs _____ electrons in its valence shell to be stable or happy.
4
6
8
2
- 15. Multiple Choice
Which is the correct molecular structure for carbon dioxide? Try working this one out before choosing.
- 16. Multiple Choice
How many total valence electrons are participating in bonding in the molecule above? They ones that are not lone pairs.
8
4
2
3
- 17. Multiple Choice
CO2 has how many lone pairs? You may need to write this one down to figure it out.
0
1
2
3
4
- 18. Multiple Choice
NH3 has how many lone pairs? You may need to write this one down to figure it out.
0
1
2
3
- 19. Multiple Choice
CCl4 has how many double bonds?
0
1
2
3
- 20. 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
- 21. Multiple Choice
An atom with 3 valence electrons "wants" a full shell, so it can either gain 5 or lose 3. Which is more likely to occur?
Gain 5
Lose 3
Nothing
- 22. Multiple Choice
When figuring out Lewis Dots for Covalent compounds what does "A" mean?
A = the total available valence electrons of all the atoms
A = the available valence electrons of one atom
A = the total valence electrons the atoms wants to have in its outer shell
A = the number of shared electrons
- 23. Multiple Choice
What does the "N" mean when figuring out Lewis Dots for covalent compounds?
N = the total number of valence electrons NEEDED in the outer shell
N = how many more valence electrons are needed
N = how many valence electrons are available to share
N = nitrogen
- 24. Multiple Choice
What would the "A" be for CH3F when figuring out the Lewis Dot?
(1 x 8 ) + (3 x 2 ) + (1 x 8) = 22
(1 x 4) + (3 x 1) + (1 x 7) = 14
- 25. Multiple Choice
Which atom will never be in the middle of a Lewis Dot structure?
N
C
H
P
- 26. Multiple Choice
Which atom goes in the middle of the Lewis Dot structure?
The one the needs the least number of valence electrons
The most electronegative element
The one that needs the most or is less electronegative generally
- 27. Multiple Choice
These conduct electricity well.
Metallic bonds
ionic bonds
covalent bonds
- 28. Multiple Choice
These only conduct electricity as molten substances or if dissolved in water.
Metallic bonds
ionic bonds
covalent bonds
- 29. Multiple Choice
These have super high melting points.
Metallic bonds
ionic bonds
covalent bonds
- 30. Multiple Choice
These have delocalized electrons.
Metallic bonds
covalent bonds
ionic bonds
- 31. Multiple Choice
These have very large electronegativity differences.
Metallic bonds
ionic bonds
covalent bonds
- 32. Multiple ChoiceWhat do we call a covalent bond where electrons are shared UNEVENLY or UNEQUALLY?IonicPolar CovalentNonpolar CovalentVan der Waals Force
- 33. Multiple ChoiceWhat type of bond is shown in this image?IonicPolar CovalentNonpolar CovalentVan der Waals Force
- 34. Multiple ChoiceIn an electron dot diagram, two pairs of shared electrons represents a ...single bonddouble bondtriple bondquadruple bond
- 35. Multiple ChoiceA Nitrogen molecule (N2) has one triple bond. How many electrons do the nitrogen atoms share?1
1346 - 36. Multiple ChoiceCompared to ionic compounds, molecular compounds generally have...good conductivitygreater densitiesmore chemical bondsa low boiling point
- 37. Multiple ChoiceCompared to ionic compounds, molecular compounds generally have...stronger chemical bondspoor conductivitya high melting pointlower densities
- 38. Multiple ChoiceIn a(an) POLAR bond, one atom pulls on the shared electrons more than the other atom.TrueFalse
- 39. Multiple ChoiceWhich has the greater EN:
N or C?CN - 40. Multiple ChoiceChoose the set that goes from lowest to highest electronegativity?Cu, Mg, Sr, CaF, Cl, Br, SiCs, Rb, Ca, MgZn, Cd, Ag, Cu
- 41. Multiple ChoiceElectronegativity is...how good an atom is at attracting electronsthe ability of an atom to lose electronsthe energy required to remove an electron from a specific atomhow easy it is to make friends.
- 42. Multiple ChoiceWhich of the following is the least electronegative element?oxygenpotassiumfluorinenitrogen
- 43. Multiple ChoicePut these in order of increasing electronegativity:
Se, S, and OSe < S < OSe < O < SO < S < SeS < Se < O - 44. Multiple Choice
The polarity of a bond is determined by...
The sum of the electronegativities of the two atoms
The difference in the electronegativities of the two atoms
The charges of the atoms
None of the Above
- 45. Multiple Choice
Partial charges are present in which type of bond?
Ionic
Nonpolar Covalent
Polar Covalent
Both Polar Covalent and Ionic
- 46. Multiple Choice
What must the difference in electronegativity between two atoms be in order for the bond between them to be polar covalent?
less than 0.4
greater than 1.7
between 0.4 and 1.7
exactly 0
- 47. Multiple Choice
What must the difference in electronegativity between two atoms be in order for the bond between them to be nonpolar covalent?
less than 0.4
greater than 1.7
between 0.4 and 1.7
exactly 0
- 48. Multiple Choice
A diatomic molecule like O2 is always _____ because electrons are shared _____
nonpolar; unequally
polar; equally
nonpolar; equally
polar; unequally
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