Plz 50 points!
a stable electron arrangement for an atom is one that does not easily change. how is this arrangement arrived at?

a.
valence electrons are discarded into space to create a full outer shell of electrons.

b.
outer shells with valence electrons are transferred or shared.

c.
valence electrons are transferred or shared to create a full outer shell of electrons.

d.
protons (positive charge) pair with valence electrons (negative charge) to create a strong bond.