alkali metals Flashcards
what group are the alkali metals in
group 1
what do all the alkali react with
and what do they produce
they react with water
to produce an alkali and hydrogen
why do all the alkali metals react in a similar way
because they all have one electron in their outer shell
what do the atoms want to do
lose one electron to have full outer shell and become stable
do alkali metals get more reactive going down or up
down
what ion do alkali metals produce
positive
are alkalis the most reactive metals
yes
whats the equation for alkali metals
very reactive metal + water = metal hydroxide + hydrogen
how does lithium react with water
floated and fizzed lilac flame
how does sodium react with water
fizzed sometimes orange flame
how does potassium react with water
moved about lots lilac flame
whats the most reactive metal
francium
what colour are most group 1 compunds
white and dissolve in water to give colourless solutions
what are the general observations for lithium sodium and potassium reacting with water
fizzes
metal floats
heat is releases
a colourless solution is formed
the metal disappears
for sodium and potassium what do they also do with water
the metal also melts on the surface forming a silvery ball
for potassium theres a lilac flame or a explosion or a crackle
whats the general word equation for metals reacting with water
metal + water = metal hydroxide + hydrogen
whats a alkali
a soluble base
what are the group one metals look like
they are dull in appearance but show a shiny surface when freshly cut
what are group 1 elements stored in
oil
what are colour are group 1 compounds and what solutions will they give
Solid Group 1 compounds are white solids and dissolve in water to give colourless solutions.
whats the balanced symbol equation for lithium with water what about..
sodium
potassium
2Li + 2h20 = 2LiOH + H2
2Na + 2h20 = 2NaOH + H2
2K + 2h20 = 2kOH + H2
