family name of rare earth element series of helium
metal is it family and rare earth element is used if you do not know the family property
Yes it is objectiveness is a rare earth element bitchezz
Polonium is an extremely rare chemical element, accompanying uranium ores; approx. 100 micrograms of polonium in one to (t) of uranium ore.
Curium is a member of the actinoids family.
Xenon belongs to noble gas family
Helium is a member of the family of noble gases.
It is in the family name of transition metals Enjoy:D
Polonium is a radioactive element. It is produced when naturally occurring uranuium-238 decays and is distributed into the crust of the Earth in small amounts. It has been found in tobacco and in uranium ores.
Actinium (Ac) is a chemical element.Actinoids is the name of the radioactive elements family which contain actinium.
Earth
No, Polonium is naturally ocurring on earth.