Assertion: atom's electron | /r/HasAspect | opposite charge
Facets:
value: to be exact
type: OTHER
value: to protons
type: TRANSITIVE-OBJECT
Source sentences:
text: In fact, electrons have an opposite charge to protons (a charge of −1 or −0.00000000000000000016021892 C, to be absolutely exact).
text: Show animations and explain that protons and electrons have opposite charges and attract each other.