Which of the following statements is true for | vedclass

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(A) $1$. Halogens $(F_2, Cl_2, Br_2, I_2)$ exist as diatomic molecules $(X_2)$.$2$. They have a valence shell configuration of $ns^2 np^5$,making them

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They are all diatomic and monovalent.

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(A) $1$. Halogens $(F_2, Cl_2, Br_2, I_2)$ exist as diatomic molecules $(X_2)$.$2$. They have a valence shell configuration of $ns^2 np^5$,making them monovalent (valency = $1$) as they gain one electron to complete their octet.$3$. While fluorine only shows an oxidation state of $-1$,other halogens $(Cl, Br, I)$ show variable oxidation states $(-1, +1, +3, +5, +7)$.$4$. Option $A$ is the most accurate general description of their elemental state and valency.

Which of the following statements is true for halogens?

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