The high rate of death during the 1918 Spanish influenza has due, in part, to what? Scarlet fever Arsenic poisoning Aspirin toxicity Staph infections

Spontaneity tell us the direction of the reaction, but not how fast it goes. gibbs free energy brings together enthalpy, entropy and temperature in one easy formula. g = h - ts. and, finally the sign of delta g is always negative for a spontaneous reaction.

They are all full and don't need any more electrons in there outer shell.