The modern Periodic Table is a masterpiece of science. It currently contains exactly 118 officially recognized elements. From the lightest gas, Hydrogen, to the heaviest artificially created radioactive metals like Oganesson, these 118 elements make up absolutely everything in the known universe. Every element is represented by a unique 1- or 2-letter chemical symbol.
Total number of discovered elements: 118.
Naturally occurring elements: 94 (The rest are synthetic/man-made).
First element: Hydrogen (H, Atomic No. 1).
Last element: Oganesson (Og, Atomic No. 118).
Latin Exceptions: 11 elements have symbols based on Latin or Greek names (e.g., Na, K, Fe, Cu, Ag, Sn, Sb, Au, Hg, Pb, W).
Chemical symbols are internationally standardized by the IUPAC.
Students are often confused when a symbol doesn't match the English name at all. For example, why is Gold 'Au' and Iron 'Fe'? This is because many elements were discovered in antiquity, long before English became the language of science. Their symbols are derived from their ancient Latin or Greek names:
Elements beyond Uranium (Atomic number 92) are generally not found in nature. They are synthetically created in high-energy particle accelerators. The very last element on the current periodic table is Oganesson (Og), with an atomic number of 118. It is highly unstable and exists for only a tiny fraction of a millisecond before decaying.
There are currently 118 officially recognized elements in the modern periodic table.
The symbol 'Fe' is derived from 'Ferrum', which is the ancient Latin word for Iron.
No. Only the first 94 elements occur naturally on Earth. Elements 95 through 118 are synthetic and must be artificially created in laboratories.
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