Two hydrogen atoms meet. One says, “I’ve lost my electron.” The other: “You’re sure?” First says, “Yes, I’m positive.”
A neutron walks into a bar and asks the bartender, “How much for a drink?” The bartender looks at him and says, “For you, no charge.”
A third hydrogen atom floats by in the same state. “Better keep an ion that one.”
So then, the neutron says, again, “How much for a drink?” The bartender looks at him and says “What are you, dense?”
Neutron sees a U235 nucleus in the bar. Says, “Sorry, I’ve gotta split. That’s my fission buddy.”