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.
Espressos contain more caffeine than regular coffee. Many people drink multiple caffeinated sodas over the course of a day. An eight ounce cup of green tea typically has about 24 - 40 mg of caffeine. Iced tea is filled with caffeine. People can become addicted to caffeine. Energy drinks contain caffeine. A cup of drip coffee can have up to 175 mg of caffeine.