bond polarity

Subdecks (2)

how is the negative charge around a covalent bond spread?
it is not evenly spread around the orbitals of the bonded atoms
electronegativity definition 
the power of an atom to attract negative charge towards itself within a covalent bond
what is the 'power' of the atom dependent on?
size and nuclear charge
what happens to electronegativity along a period?
increases as atomic radius decreases
what happens to electronegativity down a group?
decreases as shielding increases