Chemical elements on the periodic table of elements are arranged by atomic number, electron configuration, and recurring chemical properties. That being said, what is the first element on the periodic table?
Answer Hydrogen
Hydrogen is the first and lightest of all the chemical elements on the periodic table. It's a nontoxic, odorless, colorless gas that naturally exists in our Universe.
Asked by Rachel Bortles · Last updated 5 years ago · 95.8K views · SOURCE
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