Vocabulary alpha particle atomic number atomic weight beta particle element isotope isotopic abundance mass number neutron nuclide nuclide symbol proton radioactivity Before the discovery of radioactivity, all atoms of a particular element were assumed to be identical.
Side effects. Green coffee seems to cause few side effects. The caffeine in green coffee -- just like the caffeine in brewed coffee -- can cause symptoms that include: 1  Headache. 2  Upset stomach. 3  Anxiety.
Myth #1: Black Tea Has More Caffeine Than Green. All tea has caffeine, usually less than coffee, though exactly how much varies from tea to tea, which leads some tea companies and pundits to break down caffeine content by broad style: green tea has this much caffeine, black tea that much, etc.