e/Isotopes of roentgenium

Information
has gloss	eng: Roentgenium (Rg) has no stable isotopes. A standard atomic mass cannot be given.
lexicalization	eng: Isotopes of roentgenium
subclass of	(noun) one of two or more atoms with the same atomic number but with different numbers of neutrons isotope
has instance	e/Roentgenium-272
has instance	e/Roentgenium-273
has instance	e/Roentgenium-274
has instance	e/Roentgenium-275
has instance	e/Roentgenium-276
has instance	e/Roentgenium-277
has instance	e/Roentgenium-278
has instance	e/Roentgenium-279
has instance	e/Roentgenium-280
has instance	e/Roentgenium-281
has instance	e/Roentgenium-282
has instance	e/Roentgenium-283

Meaning
Japanese
has gloss	jpn: レントゲニウム(Rg)は、安定同位体を持たない。そのため標準原子量は定められない。
lexicalization	jpn: レントゲニウムの同位体
Chinese
has gloss	zho: 錀的同位素
lexicalization	zho: 錀的同位素