Name:
Date:
Per:
Bonding Bears
1. Compound: Sodium Oxide
Chemical formula: Na20
Element 1: __Sodium (Na)__ (2 atoms)
# of valence electrons: ________1______
Metal, nonmetal, or metalloid: ___metal_______
Element 2: _______________ (_____ atoms)
# of valence electrons:_________________
Metal, nonmetal, or metalloid: _________________
Build a model of each atom. Use a marshmallow for the nucleus. Use the gummy bears to
represent valence electrons. Make sure to put the correct number of valence electrons on
each atom!! (Use toothpicks to attach them to the nucleus.)
Then, try to connect all 3 atoms to create a compound. Remember that the octet rule states
that all atoms will try to obtain maximum stability by filling their valence shell to hold 8
electrons. How can you rearrange the valence electrons on your model to fill the valence
shells with 8 electrons?
Draw model here:
Explain how you rearranged the electrons:
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Name:
Date:
Per:
2. Compound: Sodium Chloride
Chemical formula: NaCl
Element 1: __________________ (_____ atoms)
# of valence electrons: ______________
Metal, nonmetal, or metalloid: __________
Element 2: _______________ (_____ atoms)
# of valence electrons:_________________
Metal, nonmetal, or metalloid: _________________
Build a model of each atom. Use a marshmallow for the nucleus. Use the gummy bears to
represent valence electrons. Make sure to put the correct number of valence electrons on
each atom!! (Use toothpicks to attach them to the nucleus.)
Then, try to connect the atoms to create a compound. Remember that the octet rule states
that all atoms will try to obtain maximum stability by filling their valence shell to hold 8
electrons. How can you rearrange the valence electrons on your model to fill the valence
shells with 8 electrons?
Draw model here:
Explain how you rearranged the electrons:
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Name:
Date:
Per:
3. Compound: Potassium Bromide
Chemical formula: KBr
Element 1: _________________ (______atoms)
# of valence electrons: ______________
Metal, nonmetal, or metalloid: __________
Element 2: _______________ (_____ atoms)
# of valence electrons:_________________
Metal, nonmetal, or metalloid: _________________
Build a model of each atom. Use a marshmallow for the nucleus. Use the gummy bears to
represent valence electrons. Make sure to put the correct number of valence electrons on
each atom!! (Use toothpicks to attach them to the nucleus.)
Then, try to connect all 3 atoms to create a compound. Remember that the octet rule states
that all atoms will try to obtain maximum stability by filling their valence shell to hold 8
electrons. How can you rearrange the valence electrons on your model to fill the valence
shells with 8 electrons?
Draw model here:
Explain how you rearranged the electrons:
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Name:
Date:
Per:
4. In these 3 compounds, the metals GAVE AWAY / TOOK electrons. (CIRCLE ONE)
5. This means that the metals gained a POSITIVE / NEGATIVE charge, and became
CATIONS / ANIONS. (CIRCLE ONE)
6. The nonmetals GAVE AWAY / TOOK electrons. (CIRCLE ONE)
7. 5. This means that the nonmetals gained a POSITIVE / NEGATIVE charge, and became
CATIONS / ANIONS. (CIRCLE ONE)
8. Compound: Sulfur Dioxide
Chemical formula: SO2
Element 1: __________________ (_____ atoms)
# of valence electrons: ______________
Metal, nonmetal, or metalloid: __________
Element 2: _______________ (_____ atoms)
# of valence electrons:_________________
Metal, nonmetal, or metalloid: _________________
Build a model of each atom. Use a marshmallow for the nucleus. Use the gummy bears to
represent valence electrons. Make sure to put the correct number of valence electrons on
each atom!! (Use toothpicks to attach them to the nucleus.)
Then, try to connect the atoms to create a compound. Remember that the octet rule states
that all atoms will try to obtain maximum stability by filling their valence shell to hold 8
electrons. How can you rearrange the valence electrons on your model to fill the valence
shells with 8 electrons?
Draw model here:
Explain how you rearranged the electrons:
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_________________________________________________________________________________________________________
_________________________________________________________________________________________________________
Name:
Date:
Per:
9. Compound: Carbon Dioxide
Chemical formula: CO2
Element 1: __________________ (_____ atoms)
# of valence electrons: ______________
Metal, nonmetal, or metalloid: __________
Element 2: _______________ (_____ atoms)
# of valence electrons:_________________
Metal, nonmetal, or metalloid: _________________
Build a model of each atom. Use a marshmallow for the nucleus. Use the gummy bears to
represent valence electrons. Make sure to put the correct number of valence electrons on
each atom!! (Use toothpicks to attach them to the nucleus.)
Then, try to connect the atoms to create a compound. Remember that the octet rule states
that all atoms will try to obtain maximum stability by filling their valence shell to hold 8
electrons. How can you rearrange the valence electrons on your model to fill the valence
shells with 8 electrons?
Draw model here:
Explain how you rearranged the electrons:
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_________________________________________________________________________________________________________
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_________________________________________________________________________________________________________
_________________________________________________________________________________________________________
_________________________________________________________________________________________________________
_________________________________________________________________________________________________________
Name:
Date:
Per:
10. 2. Compound: Methane
Chemical formula: CH4
Element 1: __________________ (_____ atoms)
# of valence electrons: ______________
Metal, nonmetal, or metalloid: __________
Element 2: _______________ (_____ atoms)
# of valence electrons:_________________
Metal, nonmetal, or metalloid: _________________
Build a model of each atom. Use a marshmallow for the nucleus. Use the gummy bears to
represent valence electrons. Make sure to put the correct number of valence electrons on
each atom!! (Use toothpicks to attach them to the nucleus.)
Then, try to connect the atoms to create a compound. Remember that the octet rule states
that all atoms will try to obtain maximum stability by filling their valence shell to hold 8
electrons. How can you rearrange the valence electrons on your model to fill the valence
shells with 8 electrons?
Draw model here:
Explain how you rearranged the electrons:
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