Gas or Solid. There are only two elements that are liquid at STP , they are Bromine and Mercury .
Nonmetals can be solid, liquid or gaseous.
Halogen state
gas
The most reactive nonmetals are the halogens in group 17 of the periodic table.
The Halogen Family is the most reactive group of nonmetals.
The most reactive nonmetals are located in top most right section of the Periodic Table, excluding group 18 (has no reactivity).
Nonmetals
an acid
Most nonmetals are not liquid at room temperature, as they are gasses. The only nonmetal that is in a liquid state at room temperature is bromine.
Solid?
Some are solid (eg carbon) some are gaseous (eg oxygen) and one is liquid (bromine).
Nonmetals in the solid state tend to be brittle and poor conductors of heat.
Nonmetals lack most of the properties of a metal.
The most reactive nonmetals are the halogens in group 17 of the periodic table.
Metals: alkaline metals Nonmetals: halogens
The most reactive nonmetals are the Halogens. They are located in the second to last row on the Periodic Table from the right.
The most chemically nonmetals are on group 7 of the peridic table e.g:F,CL,BR,I
The Halogen Family is the most reactive group of nonmetals.
Most nonmetals are poor conductions of electricity and heat and are reactive with other elements. Solid nonmetals are dull and brittle.
halogens