The âprodromal syndromeâ is not a diagnosis, but the technical term used by mental health professionals to describe a specific group of symptoms that may precede the onset of a mental illness. For example, a runny-nose is often âprodromalâ to (happening before) a cold, which means that a runny-nose may be a risk factor for developing this illness.
These are all that have importance in chemistry. There are some other very small particles, but they are studied by physicists in the field of nuclear particle physics. Electrons are the only particle involved in chemical reactions. Atoms form compounds using chemical reactions. 7 people found this useful.
Oxidation, reduction, dissociation, acid-base neutralization and molecular rearrangement are some of the commonly used kinds of chemical reactions. A chemical reaction can be symbolically depicted through a chemical equation. While in a non-nuclear chemical reaction the number and kind of atoms on both sides of the equation are equal, for a nuclear reaction this holds true only for the nuclear particles viz. protons and neutrons.