Can you name everything from Ac to Zr? Test your knowledge of the periodic table and see if you can top the leaderboard ...

Symbol: A one or two-letter abbreviation used to represent the element. Atomic number: The number of protons in the nucleus ...

Thousands of years ago, our ancestors used symbols to track the sale of textile and agricultural products. New research ...

Chemists use symbols and formulae to represent elements ... The number of subatomic particles in an atom can be calculated from the atom's atomic number and mass number. The periodic table ...

A simulation by US theoretical physicists has provided the first fully microscopic characterization of the moment an atom ...

A link exists between 6,000-year-old engravings on cylindrical seals used on clay tablets and cuneiform, the world’s oldest ...

Why are there atomic clocks but no nuclear clocks? After all, an atom's nucleus is typically surrounded by many electrons, so ...

Students tell us what they have learned from the platonic, familial and romantic relationships in their lives. By The Learning Network How do you feel about automated vehicles? What effects do ...

Anthropologists have spent decades documenting a mysterious collection of symbols etched into the Peruvian desert, depicting everything from human decapitation and domesticated animals to knife ...

Owners accumulated the seemingly indestructible diamond pebbles, as found in their unpolished natural state, as talismans against defeat and symbols ... these commonplace science snippets tells ...

Researchers investigating how the first writing arose identified the motifs on preliterate "cylinder seals" used in the trade of agricultural products and textiles.

That pun is based on the fact that the main building blocks in the branch of science are chemical elements, pure substances ...