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Periodic Table - 50 Essential Elements

Learn the 50 most important chemical elements with their symbols, atomic numbers, categories, and real-world uses.

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Front

H

Back

Hydrogen (1, Nonmetal) The most abundant element in the universe and the lightest.

Front

He

Back

Helium (2, Nonmetal) An inert noble gas used in balloons and cryogenics.

Front

Li

Back

Lithium (3, Metal) A soft alkali metal essential for rechargeable batteries.

Front

Be

Back

Beryllium (4, Metal) Used in aerospace alloys and X-ray tube windows.

Front

B

Back

Boron (5, Metalloid) Used in heat-resistant glass like Pyrex and fiberglass.

Front

C

Back

Carbon (6, Nonmetal) The fundamental building block of all known life.

Front

N

Back

Nitrogen (7, Nonmetal) Makes up approximately 78% of Earth's atmosphere.

Front

O

Back

Oxygen (8, Nonmetal) Vital for respiration and the most abundant element in Earth's crust.

Front

F

Back

Fluorine (9, Nonmetal) The most electronegative element; used in toothpaste to prevent cavities.

Front

Ne

Back

Neon (10, Nonmetal) A noble gas famous for its use in bright orange-red advertising signs.

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