BIOL 113 Lecture Notes - Lecture 23: Van Der Waals Force, Valence Electron, Bombardier Beetle
8 Jan 2018
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Onenote online: an atom is mostly empty space composed of a cloud of orbiting electrons. The region in which an electron travels is called the electron"s orbital. An electrons orbital is defined as that space surrounding the nucleus where we can expect to find an electron 90% of the time. Electrons have potential energy depending on their distance from the. That is they have energy that is available to nucleus do chemical work. Potential energy is energy of an object due to its position or structure: electrons exist at different levels, further away they have higher potential energy and closer to the nucleus they have lower potential energy. In order to be stable it has to have filled up its valence shells - when they have 8 electrons and its valence shells. Do not participate in chemical reactions if stable: hydrogen atoms achieve their most stable state by reacting with other atoms to share valence electrons.
