7S Elements in Periodic Table - Structure of the periodic table -- Practical Electron Microscopy and Database

7S 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 4703a. 7s 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 4703b. Electron configurations, filling orbitals, and valence electrons of 7s elements

Atomic Number	Symbol	Name	Electron Configuration	Filling Orbital	Valence Electrons
87	Fr	Francium	1s² 2s²p⁶ 3s²p⁶d¹⁰ 4s²p⁶d¹⁰f¹⁴ 5s²p⁶d¹⁰ 6s²p⁶ 7s¹	7s¹	7s¹
88	Ra	Radium	1s² 2s²p⁶ 3s²p⁶d¹⁰ 4s²p⁶d¹⁰f¹⁴ 5s²p⁶d¹⁰ 6s²p⁶ 7s²	7s²	7s²

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