Neodymium vs Promethium - What's the difference?
neodymium | promethium |
A metallic chemical element (symbol Nd) with an atomic number of 60.
* 2004 , (Richard Fortey), The Earth , Folio Society 2011, p. 63:
A metallic chemical element (symbol Pm) with an atomic number of 61.
As nouns the difference between neodymium and promethium
is that neodymium is a metallic chemical element (symbol nd) with an atomic number of 60 while promethium is promethium.neodymium
English
(wikipedia neodymium)Noun
(-)- Other rare elements, like neodymium , exist in more than one isotopic form, the ratios of which can provide a measure of the depth from which the flow material may ultimately have been derived.