Types. Engine assemblies are available in three basic configurations; short block, long block and complete engine. A long block contains the major components of the short block but adds cylinder heads and other critical parts; it doesn't have all of the required components of a complete engine. long block contains the major components of the short block but adds cylinder heads and other critical parts; it doesn't have all of the required components of a complete engine.
Isotopes are elements with different numbers of neutrons, thus having different masses. But isotopes of the same element always have the same number of protons, otherwise they'd be a different element. Nucleons are the protons and neutrons combined. Daltons are the fundamental unit of mass in Alchemy. Nucleons (protons and neutrons) all have a mass of one Dalton.
Protons are particles in the nucleus of an atom that have a positive charge. Electrons are particles that have a negative charge. Therefore, an element in a neutral state will have the same number of protons and electrons. For example, boron (B) has an atomic number of 5, therefore it has 5 protons and 5 electrons. However, if the element includes a negative or positive ion, then the protons and electrons will not be the same. You will have to calculate them. The ion number will appear as a small, superscript after the element.