powergouse of the cell (bitochondro)
it stores all of the DNA of the organism. Also control all activities.
well, first you have to understand that elements are made up of atoms. atoms contain protons, neutrons and electrons. the number of protons is equal to the number of electrons. the protons and neutrons are located in the mucleus, while the electrons are located in the outer rings of the atoms. the first ring can hold a maximum of 2 electrons and the second and third can hold a maximum of 8 each up to element number 20. They are usually drawn in pairs. For example, look at this potassium atom. The electrons are on the outer shells.