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 ...

Humans are made of many chemical elements that work together ... elements cannot complete the whole puzzle of life. Our bodies require other elements, including non-metal elements such as ...

Crucial to all life on Earth, the 15th element of phosphorus remains a real puzzle for astronomers. Specialized space ...

Atoms are the building blocks of everything. Atoms can form strong bonds with each other, making molecules. Symbols and formulae Letters from the alphabet are used to represent chemical elements.