This trend is seen as you move across the periodic table from left to right: the electronegativity increases while it decreases as you move down a group of elements. While this is the basic definition of the electronegativity trend, to truly understand it, it would be helpful to put it in perspective and look at some specific examples of the trend.Which element has the lowest electronegativity?
Which element has the lowest electronegativity? The alkali metals as a group have the lowest electronegativities, with the values falling as the atomic number increases, so the winner is caesium (cesium), with a Pauling score of 0.79.What is electronegativity trend?
Electronegativity Trend, symbol χ, is a chemical property that describes the tendency of an atom to attract a shared pair of electrons (electron density) towards itself. An atom’s electronegativity is affected by both its atomic number and the distance at which its valence electrons reside from the charged nucleus.