Which is the most electronegative element

Fluorine.

Explanation:

The most electronegative element is fluorine. Electronegativity is the ability of an single atom to attract electrons, mainly in covalent bonds. So, fluorine is the element that can attract most shared electrons in any interaction involves through this type of bond (covalent bond).

This phenomenon develop strong structures, for example, we can find fluorine in bones formations. Because of its high electronegativity the excess of this element in our body could bring negative consequences in the nervous system.

sorry i was late, but i don't know what assignment your talking about, i'm in flvs as well, im in earth space science. but u are behind pace bc every class should be in the 3's or 4'

the ratio of the conjugate base to the acid required to attain the desired ph.