3S Elements in Periodic Table - Structure of the periodic table -- Practical Electron Microscopy and Database

3S Elements in Periodic Table
- Practical Electron Microscopy and Database -
- An Online Book -

https://www.globalsino.com/EM/

This book (Practical Electron Microscopy and Database) is a reference for TEM and SEM students, operators, engineers, technicians, managers, and researchers.

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Table 4707a. 3s elements in periodic table

1S 2s 3s 4s 5s 6s 7s 2p 3p 4p 5p 6p 3d 3d 4d 5d 6d 4f 5f Elements Structure of the periodic table

Table 4707b. Electron configurations, filling orbitals, and valence electrons of 3s elements

Atomic Number	Symbol	Name	Electron Configuration	Filling Orbital	Valence Electrons
11	Na	Sodium	1s² 2s²p⁶ 3s¹	3s¹	3s¹
12	Mg	Magnesium	1s² 2s²p⁶ 3s²	3s²	3s²

Figure 4707 shows the relation between electron binding energies and atomic number (Z).

Figure 4707. Relation between electron binding energies and atomic number (Z) (at low binding energies).

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