4p Elements in Periodic Table

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Table 4700a. 4p 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 4700b. Electron configurations, filling orbitals, and valence electrons of 4p elements.

Atomic Number	Symbol	Name	Electron Configuration	Filling Orbital	Valence Electrons
31	Ga	Gallium	1s² 2s²p⁶ 3s²p⁶d¹⁰ 4s²p¹	4p¹	4s²p¹
32	Ge	Germanium	1s² 2s²p⁶ 3s²p⁶d¹⁰ 4s²p²	4p²	4s²p²
33	As	Arsenic	1s² 2s²p⁶ 3s²p⁶d¹⁰ 4s²p³	4p³	4s²p³
34	Se	Selenium	1s² 2s²p⁶ 3s²p⁶d¹⁰ 4s²p⁴	4p⁴	4s²p⁴
35	Br	Bromine	1s² 2s²p⁶ 3s²p⁶d¹⁰ 4s²p⁵	4p⁵	4s²p⁵
36	Kr	Krypton	1s² 2s²p⁶ 3s²p⁶d¹⁰ 4s²p⁶	4p⁶	4s²p⁶

Figure 4700 shows the relation between electron binding energies and atomic number (Z).

Figure 4700. Relation between electron binding energies and atomic number (Z) (at low binding energies).

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