The most reactive nonmetals are the Halogens. They are located in the second to last row on the Periodic Table from the right.
halogens.
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The Halogens are the most reactive non-metals. However, their reactivity decreases as you go down the group. Most reactive Fluorine>Chlorine>Bromine>Iodine>Astatine Least reactive. However, Astatine is not fully characterised because it is radio-active, and consequently is not found in open(school) labs.
Some are but the most reactive are also non-metals.
Fluroine is the most reactive non-metal.
The halogens are the most reactive nonmetals. They belong to Group 17 on the periodic table.
Metals: alkaline metals Nonmetals: halogens
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Fluorine and oxygen are the most chemically reactive nonmetals. Fluorine is the most reactive nonmetal, readily reacting with almost all other elements, while oxygen is highly reactive and forms compounds with most elements in the periodic table.
halogenes/non metals
The halogens are the most reactive family of nonmetals, as they have a strong tendency to gain an electron to achieve a full outer shell. Among metals, the alkali metals are the most reactive due to their low ionization energy and strong tendency to lose an electron to achieve a stable electron configuration.
Most reactive metals are alkali metals, most reactive nonmetalas are halogens.Least reactive metals are platinum metals; least reactive nonmetals are noble gases.