ABOUT COCARD. Since 1999, COCARD has been a company composed of like-minded, owner-operated, sub-ISOs. We have formed an entity whose purposes and structure allow us to capitalize on collective bargaining benefits and a mutually leveraged exit strategy. COCARD is managed by member volunteers with over 100 years of industry experience.
Description of his model: Bohrâs atom like Rutherfordâs contained a dense, positive nucleus. He expanded on Rutherfordâs ideas, turning his attention to describing the electron. He stated they moved in fixed, circular orbits (or energy levels) around the nucleus, these called electron shells.
This atomic model is known as the quantum mechanical model of the atom. Unlike the Bohr model, the quantum mechanical model does not define the exact path of an electron, but rather, predicts the odds of the location of the electron.This model can be portrayed as a nucleus surrounded by an electron cloud.n 1926 Erwin Schroedinger, schrÃ¶dinger An austrian, physicist took The bohr atom model one step. Further schroedinger schrÃ¶dinger used mathematical equations to describe the likelihood of finding an electron in a. Certain position this atomic model is known as the quantum mechanical model of. the atom