Why is the bond between two single hydrogen atoms stable? a. it is not stable, each hydrogen only has 1 electron and they need 8 electrons to be stable. b. hydrogen only uses the first energy shell, which holds 2 electrons, not 8. c. each hydrogen donates more electrons in their lower energy shells to get to 8 but only to other hydrogen atoms. d. each hydrogen has 4 electrons to share for a total of 8 when 2 hydrogens bond.