What's the First Element in the Periodic Table?
The first element on the Periodic Table is Hydrogen, with the atomic number 1. It's the most abundant element in the universe!
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Hydrogen! It's the star of the show (literally, stars are mostly made of it).
Hydrogen. Easy peasy. It's the lightest element and makes up around 75% of the elemental mass of the universe.
It's hydrogen. No debate needed. Atomic number 1.
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