Assertion: hydrogen atom's electron | /r/HasProperty | held
Facets:
value: more tightly
type: MANNER
Source sentences:
text: The electrons in the outer energy levels will be more tightly held, and more difficult to remove.
text: At that time, he thought that the postulated innermost "K" shell of electrons should have at least four electrons, not the two which would have neatly explained the result.