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#BioDub Partial Periodic Table (Elements 1-18) w/ Electron Arrangement

9/18/2019

 
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Notice that all elements sharing the same column have the same number of valence electrons*. (e.g. Boron [B] has three valance electrons just like Aluminum [Al] does. Nitrogen [N] has five valance electrons just like Phosphorous [P] does.)

Notice as well that all elements sharing the same row occupy the same number of electron energy levels (e.g. Lithium [Li] has electrons in the first two energy levels just like Flourine [F] does. Magnesium [Mg] has electrons in all three energy levels just like Sulfur [S] does.)

*Although Helium [He] has two valance electrons, it is commonly placed in the far-right column because its outermost energy level is full, just like Neon [Ne] and Argon [Ar].
Unit 2: Chemistry of Life

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