Practical Electron Microscopy and Database

Chapter/Index: Introduction | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | Appendix

2S Elements in Periodic Table

Table 4708a. 2s elements in periodic table   Table 4708b. Electron configurations, filling orbitals, and valence electrons of 2s elements Atomic Number Symbol Name Electron Configuration Filling Orbital Valence Electrons 3 Li Lithium  1s2 2s1  2s1 2s1 4 Be Beryllium  1s2 2s2  2s2 2s2 Figure 4708 shows the relation between electron binding energies and atomic number (Z). Figure 4708. Relation between electron binding energies and atomic number (Z) (at low binding energies).