The mechanism of action of probiotics (e.g., having an impact on the intestinal microbiota or enhancing immune function) was dropped from the definition to encompass health effects due to novel mechanisms and to allow application of the term before the mechanism is confirmed.
Noun. 1. electronegativity - (chemistry) the tendency of an atom or radical to attract electrons in the formation of an ionic bond. negativity.
The electronegativity of an atom is a measure of its affinity for electrons. The atoms of the various elements differ in their affinity for electrons. This image distorts the conventional periodic table of the elements so that the greater the electronegativity of an atom, the higher its position in the table.lthough fluorine (F) is the most electronegative element, it is the electronegativity of runner-up oxygen (O) that is exploited by life. 1  The shuttling of electrons between carbon (C) and oxygen (O) atoms powers life.