Question

1. give some similarities that exist among the elements of group viia.

Explanation:

Elements in Group VIIA (halogens) have similar chemical properties due to having 7 valence electrons. They tend to gain one electron to achieve a stable octet. They are highly reactive non - metals, form salts with metals, and exist as diatomic molecules in their elemental form under standard conditions.

Answer:

They all have 7 valence electrons, are highly reactive non - metals, form salts with metals, and exist as diatomic molecules in elemental form under standard conditions.