ChemistryGeneralQuality 77 · Exceptional
Reading the Periodic Table
PR
Everett Walker Verified Teacher
@author · 2026-07-11 · v1
7 min read
The periodic table arranges elements by atomic number. Rows (periods) add electron shells; columns (groups) share chemical properties because they have the same valence electron count. Group 1 metals like sodium react vigorously with water because they easily lose one electron.
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