What is electronegativity? What is the trend on the periodic table?

Electronegativity is the ability of an atom to attract electrons and bind to them.


With the exception of noble gases, electronegativity increases as you move from left to right across the periodic table and as you move from top to bottom electronegativity decreases.


http://edtech2.boisestate.edu/kilnerr/502/jigsaw.html