Name: _____________________________
Score: _____/19
Self Assessment: Chemical Bonding
All the information and directions for how to do these can be found in ch 5.1
& 5.2 in your book and on the activities Bonding Basics & Compounds the
Easy Way, in case you need to go back and review.
1. Atoms try to bond together to get their outer energy level ___________ of electrons,
which would take the magic number of _______, except for ___________________
and __________________, which only need _______.
2. Metals tend to _____________________ electrons and make __________________ ions.
They are found to the _________________ of the stair-step line.
3. Nonmetals tend to _________________ electrons and make __________________ ions.
They are found to the _________________ of the stair-step line.
4. When a metal and nonmetal bond, they ____________________ electrons and form
a(n) ______________________ bond.
5. When a two nonmetals bond, they ____________________ electrons and form a(n)
______________________ bond.
6. There can be both covalent and ionic bonds. These are called _____________________
ions. They are covalently bonded but act like one ion and form ionic bonds with
other atoms.
Draw a Lewis diagram and show the formula for the compound.
7. - 8. Lithium and Nitrogen
9. - 10. Oxygen and Chlorine
11. - 12. Carbon and Sulfur
13. – 14. Sodium and Phosphorus
Write the formula for each compound. You do not have to make any drawings.
15. _________________ Carbon and Hydrogen
16. _________________ Nitrogen and Iodine
17. _________________ Calcium and Nitrogen
18. _________________ Cesium and Oxygen
19. _________________ Phosphorus and Sulfur
20. _________________ Ammonium and Phosphrus
21. _________________ Potassium and Sulfate
Answer Key_
Score: _____/19
Self Assessment: Chemical Bonding
Name: _
All the information and directions for how to do these can be found in ch 5.1
& 5.2 in your book and on the activities Bonding Basics and Compounds the
Easy Way, in case you need to go back and review.
1. Atoms try to bond together to get their outer energy level
full__ of electrons, which would take the magic number of __8___, except
for __hydrogen (H)__ and __Helium (He)__, which only
need __2___.
_
lose___ electrons and make _positive_
ions. They are found to the _left_ of the stair-step line.
2. Metals tend to ___
gain/take_ electrons and make
__negative__ ions. They are found to the _right_ of the stair-step line.
3. Nonmetals tend to __
4. When a metal and nonmetal bond, they __
electrons and form a(n) __
transfer__
ionic__ bond.
5. When two nonmetals bond, they __
share_ electrons and
covalent_ bond.
form a(n) _
6. There can be both covalent and ionic bonds. These are called
polyatomic
_
__ ions. They are covalently bonded but act like one ion
and form ionic bonds with other atoms.
Decide whether each of the following is ionic or covalent and
show a Lewis diagram for the compound.
7. – 8. Lithium and Nitrogen (Li3N … ionic)
9. - 10. Oxygen and Chlorine (OCl2 … covalent)
11. - 12. Carbon and Sulfur (CS2 … covalent)
13. – 14. Sodium and Phosphorus (Na3P … ionic)
Decide whether each is ionic or covalent and write the formula
for each compound. You do not have to make any drawings.
15. _____ Carbon and Hydrogen
16. ______ Nitrogen and Iodine
Ca3N2____ Calcium and Nitrogen
17. _
Cs2O____ Cesium and Oxygen
18. _
19. _______ Phosphorus and Sulfur