Wie man "atomic number 61" ausspricht

• "atomic number 61" ausgesprochen in Englisch.

Bedeutung und Definitionen von "atomic number 61"

Noun

a soft silvery metallic element of the rare earth group having no stable isotope; was discovered in radioactive form as a fission product of uranium

Synonyme:

• promethium
• Pm
• atomic number 61