For 10 points, name this property whose elementary unit is carried by a proton and is about "1.6 times 10-to-the minus-19 coulombs."
The discovery of weak currents in which this property is not transferred confirmed the GSW theory of the electroweak interaction. When combined with two other transformations, "conjugation" of this property is believed to be a fundamental symmetry of physics. The strong interactions of quarks are mediated by the (*) "color" type of this property. Quarks carry either plus-two-thirds or minus-one-third of the "elementary" value for this property, which was determined in Millikan's oil drop experiment. For 10 points, name this property whose elementary unit is carried by a proton and is about "1.6 times 10-to-the minus-19 coulombs."
The discovery of weak currents in which this property is not transferred confirmed the GSW theory of the electroweak interaction.
charge [accept electric charge; accept color charge] &lt;SE&gt;