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we will learn how to use the periodic table to remember the orbital structure, and then write it using the shorthand notation of electron configurations. Some things to remember: • Each orbital can contain 0, 1, or 2 electrons (and no more!). • Electrons always fill up the lowest energy orbital first. The lowest energy orbital is in shell 1
To determine the electron configuration of any of the first 38 elements of the periodic table. To determine the identity of an element from its electron configuration. To complete an orbital diagram using arrows to represent electrons.
The relationship between the principal quantum number, n, and orbital energy is shown in an orbital energy diagram ( Figure 7.2.1 ). Figure 7.2.1 Identify Orbital Energies in Single-Electron Species
Title: Microsoft Word - 110_Orbital_Shapes_Worksheet.doc Author: Tom Whelan Created Date: 9/12/2008 4:24:05 PM
An orbital is a region in 3-D space where there is a high probability of finding the electron. An orbital is, so to speak, a house where the electron resides. Only two electrons can occupy an orbital, and they must do so with opposite spin quantum numbers ms. In other words, they must be paired.
Orbitals have a capacity of two electrons. Arrows are drawn inside the boxes to represent electrons. Two electrons in the same orbital must have opposite spin so the arrows are drawn pointing in opposite directions. The following is an orbital diagram for selenium.
depict the orbital shapes are intended to describe the region encompassing 90−95% probability density. In a typical drawing of orbital, we first plot the radial wave function and the angular part is superimposed.
