Lewis Acids & Bases

[904901860]

How are we able to tell whether a single element is a lewis acid or base? Does this have to do electronegativity?

[Casandra]

To tell if an element is a lewis acid or base just remember that a lewis acid is a species that accepts an electron pair like BF3 and a lewis base is a species that donates an electron pair like NH3.

[Mark 1D]

Lewis acids are defined as accepting a pair of electrons whilst the Lewis bases are donors of electrons. So it would be based on whether the molecule accepts or gives electron pairs

[Manas_Varma_4B]

Lewis acids accept pairs of electrons, while Lewis bases donate pairs of electrons.