Assertion: atom | /r/HasProperty | negative
Facets:
Source sentences:
text: An atom with a charge – which is either negative (it has an extra electron) or positive (it has an extra proton) – is called an ion.
text: As a result, he reasoned that the particles in the cathode ray were negative.
text: If the atom has more electrons than protons, it is a negative ion, or ANION.