Which Happened First?

Discovery of mendelevium

Discovery of mendelevium
Image: Albedo-ukr · CC BY-SA 2.5 · source

Mendelevium is a synthetic chemical element; it has symbol Md and atomic number 101. A metallic radioactive transuranium element in the actinide series, it is the first element by atomic number that currently cannot be produced in macroscopic quantities by neutron bombardment of lighter elements.

Summary from Wikipedia (CC BY-SA 4.0) · Dates from Wikidata (CC0)

Which happened first?

Timeline

  1. Discovery of berkelium1949
  2. Discovery of californium1950
  3. Discovery of einsteinium1952
  4. Discovery of fermiumDecember 1952
  5. Discovery of mendelevium (this page)1955
  6. Discovery of nobelium1958

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Discovery of mendelevium (1955) · Which Happened First?