Assertion: uranium | /r/MadeOf | three different isotopes
Facets:
Source sentences:
text: Uranium that is dug out of the ground will be made from three different isotopes: three different types of uranium with different numbers of neutrons in their nuclei.
text: Uranium that is dug out of the ground will be made from three different isotopes: three different types of uranium with different numbers of neutrons in their nuclei.