Ionic and Covalent Bonding
In a non-polar covalent bond the difference in electronegativity between atoms is ______
0
The difference in electronegativity between two atoms in a polar covalent bond is between _____
0-1.7
A double covalent bond consist of _____ shared pairs of electrons
2
The Lewis dot structure for any elements in group VII will have _____ electrons surrounding the atom.
7
A compound is a gas. The chemical bond that holds it together are probably _____
Covalent
Sugar is a solid at room temperature, but has a low melting point. It dissolves fairly well in water , but does not conduct electricity. What types of chemical bonds are present in the sugar?
Hyrdrogen, non polar+Polar covalent
A _______ bond is formed when two atoms bond together through a transfer of electrons
Ionic
If a compound conducts electricity outside of water it means that the bond type is probably _____
Ionic
Magnesium oxide is a white crystalline solid at room temperature. it conducts electricity when melted. It dissolves well in water. What kind of chemical bonding exists in this compound?
Ionic
Most ______ compounds are white crystalline solids
Ionic
When sodium bonds with chlorine to form salt, it loses an electron i order to have the same electron configuration of a ________
Neon
Wax is a solid at room temperature, but it doesn't dissolve in water at all. It does not conduct electricity very well, and when heated, melts very easily. What type of bonding is present in wax.
Non Polar Covalent
The difference in electronegativities is between two atoms in a bond is less than .7 The bond type is probably______
Non-polar
A compound dissolves in water but doesn't conduct electricity well. It has what types of chemical bonds?
Polar Covalent
A compound has slight charge. it has what type of chemical bonds?
Polar covalent
A compound us a liquid with a low boiling point. it dissolves in water. it has what types of chemical bonds?
Polar or Ionic
A covalent bond occurs when to atoms ______ electrons with one another
Share
The difference in electronegativities between two atoms in a bond is between .7 and 1.7 Will the substance dissolve in water?
Yes
An atom becomes an ion by gaining or losing _______
electrons
If a bond is polar covalent that means that atoms are ______ sharing electrons
equally
The difference in electronegativity between atoms in an ionic bond is _____ than 1.7
greater
Calcium becomes a positive ion by _____ two electrons
losing
The ____ rule states that atoms tend to gain, lose, or share electrons in order to have a full set of eight valence electrons
octet rule
An ionic bond is an attraction between atoms that .have a _____ charge
opposite
