Here you’ll find 3 Chemical Elements that start with D, organized from “Darmstadtium” to “Dysprosium”. These elements range from a synthetic superheavy element to a naturally occurring rare-earth metal used in magnets and alloys. See the A–Z index for other letters.
Chemical Elements that start with D are elements whose English names begin with the letter D. For example, “Darmstadtium” is a synthetic element named for Darmstadt, while “Dysprosium” is notable for its role in powerful permanent magnets.
Below you’ll find the table with atomic number, atomic weight and discovery year.
Atomic number: The number of protons in the nucleus, letting you identify and order elements by increasing atomic number.
Atomic weight: The standard atomic mass with three decimals, which helps you compare typical isotopic mass for each element.
Discovery year: The year or range when the element was discovered or first reported, helping you track historical context.
Chemical Elements that start with D
| Name | Symbol | Atomic Number | Atomic Weight (u) / Discovery Year | Description |
|---|---|---|---|---|
| Darmstadtium | Ds | 110 | 281.000 / 1994 | Synthetic transition metal; produced atom-by-atom at GSI Darmstadt. Extremely short-lived and rare, named after the city of Darmstadt. |
| Dubnium | Db | 105 | 268.000 / 1968–1970 | Synthetic transition metal; first made in particle accelerators and named for Dubna, Russia. Discovery was disputed between labs; no stable isotopes. |
| Dysprosium | Dy | 66 | 162.500 / 1886 | Lanthanide (rare-earth) metal; silvery and magnetic, used in high-performance magnets and neutron-absorbing control rods in nuclear reactors. |