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.
When you drink a cup of quality tea, you're actually getting a large amount of beneficial substances with potent biological effects . The best known of these is caffeine. A cup of green tea contains much less caffeine (24-40 mg) than a cup of coffee (100-200 mg), but still enough to have a mild effect.