What does the octet rule have to do with the periodic trends?

Answer 1

Octet rule refers to the tendency of formations of noble gases to appear with the addition of eight protons - electrons in arranging elements in a table. The first noble gas being Helium => addition of eight protons => 2 electrons in a S orbital & 6 electrons in P orbitals.

Answer 2

The octet rule states that atoms tend to gain, lose, or share electrons to achieve a stable electron configuration like a noble gas with 8 electrons in the outer shell. Periodic trends, such as electronegativity and ionization energy, dictate how easily atoms can gain or lose electrons to fulfill the octet rule. Elements with high electronegativity are more likely to gain electrons, while those with low ionization energy may lose electrons easily.