The periodic table of chemical elements, often called the periodic table, organizes all discovered chemical elements in rows (called periods) and columns (called groups) according to increasing atomic ...

What is carbon? Find out about the structure and properties of the element carbon. What are elements? A visual explanation of chemical elements.

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

Five of these shards—four glass and one ceramic—have now undergone chemical analyses to determine which elements the original glass and ceramic containers came into contact with. The chemical ...

chemical (a vast assortment of organic and inorganic compounds), visual (crypsis and mimicry ... 1977), contain large amounts of certain chemical elements (frequently metals or metallic compounds ...

Aa Aa Aa Biogeochemical cycles describe pathways by which chemical elements move through both biotic (the biosphere) and abiotic compartments (the atmosphere, hydrosphere, and lithosphere ...