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.
Caffeine is commonly found in: 1  Coffee. 2  Various leaves made into tea, such as Camellia Sinensis (Green Tea) 3  Cacao and Cocoa (chocolates) 4  Paullinia cupana (Guarana) 5  Yerba Mate. 6  Kola nut.