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.
The Tanzania Peaberry coffee bean has a 1.42% caffeine content while the Yemen Mocha Mattari has only 1.01% caffeine. Guatemalan and Kona beans are high in caffeine with 1.20 to 1.32% caffeine and Zimbabwe and Ethiopian Harrar having lower levels around 1.10% and 1.13% respectively.