Mendelevium (Md): Properties, Uses and Facts in 3D
Mendelevium is element 101 on the periodic table, an actinide, so it is a metal. At room temperature it is expected to be a solid (too few atoms have ever been made to check). Open it in the 3D Periodic Table to spin its tile, see its electron shells and read its story.
Explore in 3DMendelevium quick facts
| Atomic number | 101 |
|---|---|
| Symbol | Md |
| Atomic mass | 258 |
| Category | Actinide |
| Series and period | Actinides, period 7 |
| Block | f-block |
| State at room temperature | Solid (expected) |
| Electron configuration | [Rn] 5f¹³ 7s² |
| Electrons per shell | 2, 8, 18, 32, 31, 8, 2 |
| Discovered | 1955, Ghiorso |
What is mendelevium used for?
- Scientific research only
- Nuclear physics studies
- First element identified one atom at a time
Interesting facts about mendelevium
- Named after Dmitri Mendeleev. Creator of the periodic table
- Produced one atom at a time. The initial discovery experiment detected only 17 atoms
- Mendelevium was the first element produced one atom at a time, then chemically identified
Mendelevium was discovered in 1955 by Ghiorso in the United States.
Where mendelevium sits on the periodic table
Mendelevium is in the actinide series (period 7). Tap any element to open its page.
Other actinides
Mendelevium questions
What is the atomic number of mendelevium?
Mendelevium has atomic number 101, so every mendelevium atom has 101 protons in its nucleus. Its symbol is Md and its atomic mass is 258.
Is mendelevium a metal?
Mendelevium is a metal. On the periodic table it is grouped as an actinide, found in the actinide series (period 7).
What is the electron configuration of mendelevium?
The electron configuration of mendelevium is [Rn] 5f¹³ 7s². Its electrons sit in 7 shells: 2, 8, 18, 32, 31, 8, 2.
What is mendelevium used for?
Mendelevium is used for scientific research only, nuclear physics studies and first element identified one atom at a time.
Who discovered mendelevium?
Mendelevium was discovered in 1955 by Ghiorso in the United States.
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