mendelevium

[men-dl-ee-vee-uhm]

noun

Chemistry, Physics.

1. a transuranic element. Md, Mv; 101.

mendelevium

/ ˌmɛndɪˈliːvɪəm /

noun

1. a transuranic element artificially produced by bombardment of einsteinium. Symbol: Md; atomic no: 101; half-life of most stable isotope, ²⁵⁸ Md: 60 days (approx.); valency: 2 or 3

mendelevium

1. A synthetic, radioactive metallic element of the actinide series that is produced by bombarding einsteinium with helium ions. Its most stable isotope is Md 258 with a half-life of approximately 51.5 days. Atomic number 101.

2. See Periodic Table

Word History and Origins

Origin of mendelevium¹

1950–55; named after D. I. Mendeleev; -ium

Word History and Origins

Origin of mendelevium¹

C20: named after D. I. _Mendeleyev

Example Sentences

The naming of elements No. 100 and No. 101, fermium and mendelevium, had caused little stir, but that relative calm soon shattered.

Read more on The New Yorker

Over the course of 30 years, his inventions contributed to the discovery of americium, curium, berkelium, californium, einsteinium, fermium, mendelevium, nobelium, lawrencium, rutherfordium, dubnium and seaborgium.

Read more on New York Times

Many are named after great scientists: einsteinium, curium, fermium, mendelevium, bohrium and rutherfordium.

Read more on BBC

There is also mendelevium, named after, the Russian scientist who established the first periodic table in 1869, and fitted the known elements into their places in the table based on their properties.

Read more on BBC