Question

multiple-choice question the image below tells us that fluorine should be in group. 5 6 8 7 rewatch

Explanation:

Fluorine (F) has an atomic number of 9. Its electron configuration is \(1s^2 2s^2 2p^5\). The number of valence electrons (electrons in the outermost shell) is 7. In the periodic table, elements are grouped by the number of valence electrons (for main - group elements). So, fluorine, having 7 valence electrons, belongs to group 7 (also known as group 17, the halogens).

Answer:

1. The option corresponding to 7 (the checkbox next to 7) should be selected.