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- 1. Multiple Choice
What is a valence electron?
an electron that is found in the outermost shell of an atom.
an electron found in the innermost shell of an atom.
an electron found in the middle shell.
- 2. Multiple Choice
What is the number of valence electrons for Carbon (Group 14)?
1
2
3
4
- 3. Multiple Choice
What is the number of valence electrons for Neon and the other Noble Gases?
5
6
7
8
- 4. Multiple Choice
A covalent bond forms when atoms ___________ electrons.
gain
share
increase
transfer
- 5. Multiple ChoiceWhich type of bond has a transfer of an electron from on atom to another?Polar CovalentNon Polar CovalentIonicMetallic
- 6. Multiple ChoiceCovalent compoundsShare electronstransfer electronscontain a sea of electronsconduct electricity
- 7. Multiple Choice
How many valence electrons in this structure?6547 - 8. Multiple Choice
Ionic bonding is between a
nonmetal and nonmetal
metal and nonmetal
metal and metal
Depends on the situation
- 9. Multiple Choice
Which category of elements usually form negative ions?
metals
nonmetals
metalloids
noble gases
- 10. Multiple Choice
Predict the bond between Mg and Cl
covalent
ionic
metallic
none of the above
- 11. Multiple ChoiceWhich is the correct name for CaBr2?Calcium BromineBromine CalciumCalcium BromideCarbon and Bromine
- 12. Multiple ChoiceWhat is the name for CaS?calcium sulfatecalcium sulfidecalcium monosulfidemonocalcium monosulfide
- 13. Multiple ChoiceWhich of the following is ionic?NO2MgOCOCH4
- 14. Multiple Choice
What will be the formula of the following chemical compound name?
Carbon Trichloride
C3Cl
CCl
3CCl
CCl3
- 15. Multiple Choice
What will be the formula of the following chemical compound name?
Sulfur Diiodide
SI2
2SI
S2I2
S2I
- 16. Multiple Choice
What charge would a potassium (K) ion have?
+1
-1
+2
-2
- 17. Multiple Choice
A solid substance is soft, has a low melting point and is a poor conductor of electricity. The substance is most likely
Ionic Compound
network solid
metallic solid
covalent solid
- 18. Multiple ChoiceChemical bonds form when atomscombined nucleigive up neutronsgain protonsshare or transfer electrons
- 19. Multiple Choice
What usually forms the positive ion?
Metal
Nonmetals
None
- 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
What do two atoms form when they are joined together?
a nonmetal
a metal
a chemical bond
an atom
- 22. Multiple ChoiceThe bond between N & H. Ionic or covalent?IonicCovalent
- 23. Multiple ChoiceThe bond between Na & F. Ionic or covalent?IonicCovalent
- 24. Multiple Choice
What is the correct Lewis Dot Structure for ammonia NH3
- 25. Multiple Choice
In metallic bonds electrons are:
shared
move around the nuclei randomly
transferred
- 26. Multiple ChoiceAt room temperature, most metals areliquidsolidgasan alloy
- 27. Multiple Choice
Which of the following would be held together by the metallic bond?
Atoms of iron (Fe)
Molecules of CH4
Atoms of sulfur (S)
Units of NaCl
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