Final answer:
Electronegativity is the property that measures an element's ability to attract electrons during chemical combination, influenced by ionization energy and electron affinity.
Step-by-step explanation:
The property of an element that represents its tendency to attract electrons when it chemically combines with another element is known as electronegativity. Electronegativity is a measure of the relative ability of an atom to attract electrons to itself when forming a chemical compound. Factors that influence an element's electronegativity include its ionization energy (the energy required to remove an electron from an atom) and its electron affinity (the tendency of an atom to attract electrons). Elements with high electronegativities tend to acquire electrons in chemical reactions and are usually located in the upper right corner of the periodic table, such as fluorine, which has the highest electronegativity of the stable elements.