1. the tendency of an element to react is closely related to (1 point). a. its atomic mass.. attractions between its atoms.. b. the number of valence electrons in atoms of the element.. c. the ratio of protons to neutrons in atoms of the element.

n has four pairs of electrons in the valence shell, electrons repel one another ,n has 7 protons in its nucleus, and since n has 7 protons, it must fill the second shell, giving it 4 pairs of electrons. the electrons form 3 bonds and 1 lone pair of electrons. each pair of electrons repels the other pairs, so they are equally far apart.

so all of the above