- Physical Sciences
atoms of the same element that contain equal numbers of protons (same atomic number) but different numbers of neutrons in their nuclei.
reactions in which bonds break to form intermediates with a charge.
the sum of the number of protons and neutrons (the nucleons) in the nucleus of an atom. It...
SystÃ¨me International dâUnitÃ©s. Internationally agreed coherent system of units: distance in...
shows the structure of the molecule but not all the bonds between every atom.