Any of the metallic elements within Groups 3 to 12 in the Periodic Table that have an incomplete inner electron shell and that serve as transitional links between the most and the least electropositive in a series of elements.
They are characterized by multiple valences, colored compounds, and the ability to form stable complex ions. Also called transition metal. An element whose atom has an incomplete d sub-shell, or which can give rise to cations with an incomplete d sub-shell.
| Name | Symbol | Atomic Number | Atomic Weigth |
|---|---|---|---|
| Scandium | Sc | 21 | 44.95591 |
| Titanium | Ti | 22 | 47.88 |
| Vanadium | V | 23 | 50.9415 |
| Chromium | Cr | 24 | 51.9961 |
| Manganese | Mn | 25 | 54.93805 |
| Iron | Fe | 26 | 55.847 |
| Cobalt | Co | 27 | 58.9332 |
| Nickel | Ni | 28 | 58.6934 |
| Copper | Cu | 29 | 63.546 |
| Yttrium | Y | 39 | 88.90585 |
| Zirconium | Zr | 40 | 91.224 |
| Niobium | Nb | 41 | 92.90638 |
| Molybdenum | Mo | 42 | 95.94 |
| Technetium | Tc | 43 | -97.9072 |
| Ruthenium | Ru | 44 | 101.07 |
| Rhodium | Rh | 45 | 102.9055 |
| Palladium | Pd | 46 | 106.42 |
| Silver | Ag | 47 | 107.8682 |
| Lanthanum | La | 57 | 138.9055 |
| Hafnium | Hf | 72 | 178.49 |
| Tantalum | Ta | 73 | 180.9479 |
| Tungsten | W | 74 | 183.84 |
| Rhenium | Re | 75 | 186.207 |
| Osmium | Os | 76 | 190.23 |
| Iridium | Ir | 77 | 192.22 |
| Platinum | Pt | 78 | 195.08 |
| Gold | Au | 79 | 196.96654 |
| Actinium | Ac | 89 | -227.0278 |
| Rutherfordium | Rf | 104 | -261.1089 |
| Hahnium | Ha | 105 | -262.1144 |
| Seaborgium | Sg | 106 | -263.1186 |
| Nielsbohrium | Ns | 107 | -262.1231 |
| Hessium | Hs | 108 | -265.1306 |
| Mietnerium | Mt | 109 | -266.1378 |
| Unnunnilium | Unn | 110 | -268 |
| Unnununium | Unu | 111 | -269 |
Bohrium is an artificially produced radioactive chemical element with the symbol Bh and the atomic number 107 in the periodic table of elements. It’s not found in Earth’s crust since it’s a synthetic element created in a laboratory. Chemical and Physical Properties of Bohrium Property Value Symbol Bh Name Bohrium Atomic Number 107 Atomic Weight … Read more
Rhenium is a chemical element with the atomic number 75 in the periodic table. It’s one of the rarest elements found in Earth’s crust. Being a member of the transition metals group of elements, this rare metal element has seven valence electrons that make it a chemically inert substance to most fuel gases except oxygen. … Read more
Technetium is a chemical element with atomic number 43 in the periodic table. It’s a synthetically produced element, but it can also be found in Earth’s crust. The natural occurrence of element 43 is around 0.003 parts per trillion. As a member of the manganese family of elements, technetium is a divalent transition metal. It’s … Read more
Manganese is a chemical element with the atomic number 25 in the periodic table. It’s the fifth most abundant metal that occurs in Earth’s crust. A member of the transition metals family of elements, manganese has four allotropic forms which make it an extremely versatile element. Its most stable oxidation states are +2, +6, and … Read more
Seaborgium is a chemical element with the atomic number 106 in the periodic table. It’s a synthetically produced radioactive substance. Hence, it does not occur in any layer of Earth’s crust. Assumed to belong to the transition metals group of the periodic table, this transactinoid element is calculated to have a maximum of six valence … Read more
Tungsten is a chemical element with the atomic number 74 in the periodic table. It’s the strongest naturally occurring metal in the world. Element 47 is one of the rarer elements found in Earth’s crust, with an abundance of 1.5 parts per million. Being a member of the transition metals family of periodic table elements, … Read more
Molybdenum is a chemical element with the atomic number 42 in the periodic table. It occurs in an abundance of 1.5 parts per million in Earth’s crust. This refractory metal has three valence electrons and adopts the oxidation states of +2 to +6 in the compounds. Out of all naturally occurring elements, only carbon, tungsten, … Read more
Chromium is a chemical element with an atomic number of 24 in the periodic table of elements. It’s one of the most abundant naturally occurring elements in Earth’s crust. This element, also known as the hardest metal on Earth, is a member of the transition metals family of periodic table elements and has six valence … Read more
Dubnium is a radioactive chemical element with an atomic number of 105 in the periodic table. It’s not found in Earth’s crust since it’s a synthetically produced element. Being a member of the transuranium element family, dubnium is expected to have five valence electrons. Chemical and Physical Properties of Dubnium Property Value The symbol in … Read more
Tantalum is a chemical element with the atomic number 73 in the periodic table. Its occurrence in Earth’s crust amounts to around 2 ppm. Being a member of the transition metals family of elements, this heavy metal has five valence electrons. It’s often used for its strong anti-corrosive and high thermal resistance properties in medicine, … Read more