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You see, the chemists have a complicated way of counting: instead of saying "one, two, three, four, five protons", they say, "hydrogen, helium, lithium, beryllium, boron."

Richard P. Feynman (2014). “QED: The Strange Theory of Light and Matter”, p.113, Princeton University Press
You see, the chemists have a complicated way of counting: instead of saying one, two, three, four, five protons, they say, hydrogen, helium, lithium, beryllium, boron.