All alkali metals react readily with air and water, which is why they are stored in oil.
They are soft solids at room temperature, low ,eating and boiling points that decrease going down the group. Low densities so Li, Na and K float on water
React wth water to produce metal hydroxide and hydrogen gas.
Eg, 2Na+2H2O-->2NaOH+H2
They lose their electrons in reactions to form ionic compounds, ions have a single positive charge
React with halogens to form salts that are a white or colourless crystal
Compounds of alkali metals dissolve in water, forming colourless solutions
Reactivity increases going down group 1 because larger atoms, electron are less attracted to nucleus,
Loss of an electron-oxidisation
Gain an electron-reduction
Comments
No comments have yet been made