Using a cathode ray tube, Thomson confirmed that O atoms must have an overall positive charge.
atoms are made of particles that have a negative charge.
O electrons in atoms must have varying amounts of energy.
electrons are only found in the nucleus.

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Let the ed50 of a recreational drug be defined as the amount required for 50% of a test group to feel high or get a buzz. if the ed50 value of ethanol is 470 mg/kg body mass, what dose would a 70 kg party goer need to quickly consume in order to have a 50% chance of getting a buzz? 235 mg 470 mg 32,900 mg 35,000,000 mg