Скачать или смотреть Atoms: Energy in the Atom

Hello and welcome to the second video about atoms where we talk about energy level. This video is voiced by Julie Ott.

Here is the keynotes for this video
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1) The Key to the chemical behavior of atoms lies in the arrangement of the electrons in their orbits. Theory tells us that a particular electron can be anywhere at a given instant.


2) The Volume of space around a nucleus where an electron is likely to be found is called the "orbital" of that electron. Some electron orbitals that are near the nucleus are
spherical orbitals (S Orbital). Others are dumbshell shapped (P Orbitals) and still others have different shapes the father away from the nucleus.

3)Electrons possess enormous energy. All electrons within a given orbital possess the same energy, but different orbitals possess different energy. Electrons in outer orbitals move faster then the ones nearer the nucleus. Those outer electrons possess more energy then inner ones. Think of the arrangement of electron orbitals around the nucleus as energy levels

4)They can be depicted as two-dimensional rings but keep in mind that actual electron "orbitals" often have complex three-dimensional shapes.

5)All Electrons possessing the same energy are placed on the same ring in the energy level. No one orbital can contine more than two electrons. An atom can possess
several different orbitals that are equal distance from the nucleus.

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