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The universe began to form around 13 billion years ago.
Nitrogen
A colorless, odorless gas that is the most abundant element in the Earth's atmosphere, essential for plant and animal life.
Argon
A noble gas element with atomic number 18, colorless and odorless, used in lighting and welding due to its inertness.
Baking Soda
A common name for sodium bicarbonate, a chemical compound used in baking as a leavening agent.
Elemental Symbol
A one or two-letter abbreviation derived from the element's name in English or Latin, representing a chemical element on the periodic table.
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