The electron arrangements of the first three elements in group 1: The atoms of all group 1 elements have similar chemical properties and reactions because they all have one electron in their outer ...
The electron arrangement of sodium (2.8.1) shows that sodium, Na: The electron arrangements of the first three elements in group 1: The atoms of all group 1 elements have similar chemical properties ...
Note: This video is designed to help the teacher better understand the lesson and is NOT intended to be shown to students. It includes observations and conclusions that students are meant to make on ...
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