Kako izgovoriti "atomic number 91"

• "atomic number 91" se izgovarja v Angleščina.

Pomen in opredelitev pojma "atomic number 91"

Noun

a short-lived radioactive metallic element formed from uranium and disintegrating into actinium and then into lead

Sinonimi:

• protactinium
• protoactinium
• Pa
• atomic number 91