Assertion: einsteinium | /r/HasAspect | electron
Facets:
Source sentences:
text: The atomic number of einsteinium is 99 (Es has 99 protons and electrons).
text: Einsteinium has 99 protons and electrons.
text: The atomic number of einsteinium is 99 (Es has 99 protons and electrons).
text: The atomic number of einsteinium is 99 (Es has 99 protons and electrons).