Flashcards in Topic 6 - Groups In The Periodic Table Deck (15):
Properties of alkali metals
Low Melting point
Group 1 reactivity
Readily lose single electron.
As atomic radii increases with shielding its attraction to the nuclei decreases.
Alkali metal + cold water.
Hydroxide + Hydrogen
Toxic, green gas
Red-brown liquid and gives off orange vapour
Grey solid, purple vapour
Test for chlorine
Damp blue litmus paper is bleached. (May turn red as it is acidic)
Reactivity and halogens
Lower radii gives a greater attraction to attract electrons.
Halogens + metal
Metal halide (salt)
Halogen + Hydrogen
Hydrogen Halide (salt)
Displacement and halogens
More reactive will displace.
Features of a noble gas
Inert, colourless, non-flammable, hard to observe
Take 2 transparent solutions. Mix the 2. Until a mark on paper is no longer visible time it.
Reaction rate in change of mass
Using a mass balance. Time when the mass stops changing.