Bonding Review
Name______________________
Covalent bonds form between a ______________ and a
________________. Ionic Bonds form between a _______________ and
a ______________. Metallic bonds from between a _____________
and a ________________.
Classify each as covalent, metallic, or ionic.
1. CaCl2
2. CO2
3. H2O
4. KO2
5. NaF
6. CH4
7. SO3
8. LiBr
9. MgO
10. HCl
11. KI
12. NO2
13. FeCl3
14. P2O5
15. N2O3
Covalent Bonding occurs when 2 or more nonmetal atoms share
electrons in attempt to fill their outer shells with an octet or
8. Except for hydrogen, which only needs 1 more valence electron
to fill its outer shell.
H + Cl =
H
Cl
Show how covalent bonding occurs in each of the following atoms.
Atoms may share one, tow, or 3 pairs of electrons.
1. H + H (H2)
2. F + F (F2)
3. O + 0 (02)
4. N + N (N2)
5. C + O (CO2)
6. H + O (H2O)
Ionic Bonding occurs when a metal atom transfers one or more
electrons to a nonmetal atom in an effort to attain a stable
octet of electrons.
Na
+
Cl
=
Na Cl
Show the transfer of electrons in the following combinations:
1.
K + F
2. Mg + I
3. Be + S
4. Na + O
5. Al + Br