2.2.2.3 Electronegativity and Bond Polarity Flashcards
1
Q
Definition of Electronegativity
A
Its the ability of an atom to attract the bonding electrons in a covalent bond
2
Q
What is the general trend of electronegativity
A
Increases towards fluorine so –> and ^
3
Q
Definition of non-polar
A
The electrons in the bond are evenly distributed between the atoms that make up the bond
4
Q
What is a permanent dipole
A
its a small charge difference across a bond that results from a difference in the electronegativities of the bonded atoms
5
Q
a polar covalent bond has…
A
… a permanent dipole
6
Q
How is CCl4 a non polar molecular but it contains c-cl bonds
A
each c-cl bond is polar however ccl4 is symmetrical therefore the dipoles cancel each other out
