Covalent Bonds
What type of elements bond covalently?
Nonmetals can bond to other nonmetals
Do atoms in a H2 (hydrogen gas ) molecule have an electric charge?
No, the two hydrogen atoms share electrons equally.
an attraction between a positive metal ion and the electrons surrounding it.
If a molecule has a triple bond? How many pairs of electrons does it share?
3
Is Cl2 a polar molecule? Why?
No, molecular chlorine has a nonpolar bond.
Why do metal atoms lose electrons easily?
Their valence electrons are not strongly held.
What is the total of electrons from triple bond?
6
Name an example of a polar bond.
answers will vary
Why do metals have high luster?
The valence electrons absorb light and then re-emit it, which makes them look shiny.
Why would the melting point of a molecular compound be lower than that of an ionic compound?
Molecules do not have strong attractive forces between them like ionic compounds
Name an example of a nonpolar bond.
Answers will vary.
What property is demonstrated by the forming of a wire?
Ductility
How do bonded atoms becomes partially charged?
Unequal sharing of electrons causes covalently bonded atoms to have slight electric charges.
True or False. Covalent bonds usually form when a nonmetal combines with a metal.
False
Why doesnt a metal wire break?
Metallic bonds within the metal hold the metal together.