Hydrogen (H) - Group 1, Period 1, Aluminum (Al) - Group 13, Period 3, Neon (Ne) - Group 18, Period 2, Silicon (Si) - 4 Valence Electrons, 3 Electron Shells, Carbon (C) - 4 Valence Electrons, 2 Electron Shells, Calcium (Ca) - 2 Valence Electrons, 4 Electron Shells,

Periodic Table Match

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