Which groups in the main group have lower electronegativity than d block elements?

In the main group elements, the alkali metals (Group 1) and alkaline earth metals (Group 2) generally have lower electronegativity compared to many d-block elements. This is because d-block elements, which include transition metals, tend to have higher nuclear charges and effective nuclear attraction, resulting in greater ability to attract electrons. Additionally, elements in Groups 13 and 14 may also have lower electronegativity than some d-block elements, but this can vary depending on the specific elements being compared.