In chemistry, electronegativity is the force at which an atom attracts
electrons into
covalent bonds. The larger the atom's
electronegativity is, the stronger the attraction the atom has to bonding
electrons. As a general rule, electronegativity increases as
you move up and to the right across the periodic table of the elements.
The most common values for electronegativity were first measured
by Linus Pauling.