"I'm poisonous, Sodium. I'm no good for anyone."
With that sentence, Sodium knew he had met his soul mate. "Don't you see, Chlorine, I'm poisonous, too!" He half-smiled. "And hey, if I'm gonna combine with an element, I sure don't want to screw up another gas's life. It wouldn't be noble, right?"
Chlorine smiled through her tears. "I suppose..."
"Step closer. Let's make an octet."
So the two elements stepped toward each other, but neither of them was prepared for the magnitude of the reaction. The sparks flew immediately, and the two became one: NaCl.
"We're compatible. More than I would've imagined," Chloride (for that was now her name) smiled in surprise.
"Of course we are. We were made for each other."
"What makes you so sure?"
"Elementary, my dear Chloride. Together, we were incomplete and dangerous. But now," Sodium smiled blissfully, "we sustain life. We complete each other."