In Science
The chemical element with the atomic number 61 (promethium), a lanthanide, is the element with the secondary lowest ordinal number, which does not possess any stable isotopes. The promethium preceding element with atomic number 60 (neodymium) and the promethium following element 62 (samarium) have all stable isotopes.
Read more about this topic: 61 (number)
Famous quotes containing the word science:
“The belief that established science and scholarshipwhich have so relentlessly excluded women from their makingare objective and value-free and that feminist studies are unscholarly, biased, and ideological dies hard. Yet the fact is that all science, and all scholarship, and all art are ideological; there is no neutrality in culture!”
—Adrienne Rich (b. 1929)
“The sweetest and most inoffensive path of life leads through the avenues of science and learning; and whoever can either remove any obstructions in this way, or open up any new prospect, ought so far to be esteemed a benefactor to mankind.”
—David Hume (17111776)