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Elements De?nition of Elements: A chemical element or element is a species of atoms having the same number of protons in their atomic nuclei. There are 118 elements that have been identi?ed of which the ?rst 94 occur naturally on Earth with the remaining 24 being synthetic elements.

1HydrogenSodium2HeliumMagnesium3LithiumAluminium4BerylliumSilicon5BoronPhosphorus5 more rows

Table of 118 Elements - Their Symbols and Atomic Number Element NameAtomic NumberSymbolManganese25MnIron26FeCobalt27CoNickel28Ni114 more rows

Periodic Table of Chemical Elements. The periodic table of chemical elements, often called the periodic table, organizes all discovered chemical elements in rows (called periods) and columns (called groups) ing to increasing atomic number.

The periodic table is a tabular array of the chemical elements organized by atomic number, from the element with the lowest atomic number, hydrogen, to the element with the highest atomic number, oganesson. The atomic number of an element is the number of protons in the nucleus of an atom of that element.

A printable periodic table is an essential tool for students and chemists. The periodic table lists the elements in order of increasing atomic number and includes other key facts, like atomic weight. You can place it where you need it while solving problems, mark it up, and print a new one whenever you like.

The period 5 transition metals are yttrium (Y), zirconium (Zr), niobium (Nb), molybdenum (Mo), technetium (Tc), ruthenium (Ru), rhodium (Rh), palladium (Pd), silver (Ag), and cadmium (Cd).