a rectangle with lines is...
what is the formula of potassium chloride?
what is the state of the element chloride?
what is the state of the element bromine?
what is the state of the element iodine?
colour of chlorine?
colour of bromine?
colour of iodine?
the elements fluorine chlorine + bromine are all in the group??
what is the name given to group 7 ?
colour of flourine ?
proton number is 11 what is the number of electrons?
group 7 elents are all made of metals/non metals
group 7 elements all form positive/negative ions when they react
gas that comes from lithium ?
a piece of wire is dipped into lithuim then put under a flame what colour will it go?
a piece of wire is dipped into sodium then put under a flame what colour will it go?
formula of the molecule flourine
formula of the molecule chlorine
formula of the molecule Bromine
why is potassium placed below sodium?
higher proton number
lithium + chlorine =
group 7 elements become less _________ down the group
The shell /electron arrangement is ....
what is the name given to group 1?
as you go ___________ the a____________ metals melting p_________ and b____________ point decreases
down alkaline points boiling
lithium + water ------->
lithiumhydroxide + hydrogen
melting points increase as you go down this group
density increases as you go down the group ______
metal + halogen ------->
to work out the number of protons take ..
the top number away from the bottom
a piece of wire is dipped into pottasium then put under a flame what colour will it go?