halogens Flashcards
what material are halogens?
non metals
what is the colour of fluorine ?
yellow
what is the colour of chlorine?
pale green
what is the colour of bromine?
brown
what is the colour of iodine?
grey
what state is fluorine at room temp?
gas
what state is chlorine at room temp?
gas
what state is bromide at room temp?
liquid
what state is iodine at room temp?
solid but is sublime
what does sublime mean?
turns from a solid to a gas quickly
what kind of melting points and boiling points do halogens have?
low melting and boiling points
are halogens good or bad conductors of heat and electricity?
bad
does the low melting and boiling point of halogens increase or decrease up or down the group ?
increases , down
period =
amount of shells
group =
number of electrons in outer shell
halogens react with metals to form..
ionic compounds ( salts )
