Question

which element has the lowest electronegativity, carbon, lithium or oxygen

Answer 1

Answer:

lithium with 0.98 electronegativity

Answer 2

Answer:

Electronegativity is the tendency for an atom to attract electrons. There are general trends on the periodic table which you can use to determine the relative electronegativity for different elements, but otherwise you can also look at their valence shell and effective nuclear charge to determine their relative electronegativity.

In the valence shells of lithium, carbon and oxygen, lithium is the only element where it is more disadvantageous to gain electrons instead of losing electrons as to gain a "full outer shell"