Atomic mass Memes

Just your typical molecular sleepover. Oxygen (O with atomic mass 15.99) is lounging in bed when two hydrogen atoms (H with atomic mass 1.01) show up at the door. "I brought a friend," one H says to the other. Little do they know they're about to form the most stable throuple in chemistry. Classic water molecule formation depicted as an awkward house party. That's H₂O synthesis for you—not a chemical reaction, just two hydrogens crashing at oxygen's place.