Chapter: Periodic Classification of Elements· Science

What property do all elements in the same column of the Periodic Table as fluorine have in common

What property do all elements in the same column of the Periodic Table as fluorine have in common ?

Doubtly Asked 8 Dec 2021 Updated 23 Oct 2026 Student doubt Save WhatsApp Report

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Valency equal to 1.

Doubtly · 8 Dec 2021 Report

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Answer: They all have 7 valence electrons, so their valency is 1.

Fluorine is in group 17 (configuration 2, 7). All elements of this group, the halogens (F, Cl, Br, I), have 7 electrons in their outermost shell. Each needs one more electron to complete its octet, so they all have a valency of 1, are reactive non-metals and form compounds such as NaF, NaCl and HCl.

Doubtly AI · 23 Oct 2026 AI-verified · Oct 2026 Report

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What property do all elements in the same column of the Periodic Table as fluorine have in common

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