Describe and explain the trend in reactivity down the alkali metals group.
Reactivity increases down the group.
This is because the outer electron in each atom is further away from the nucleus as you go down the group and so the electrostatic forces between the nucleus and the outer electron are weaker. This means electrons are more easily given up in a reaction.
AT
Related Chemistry GCSE answers
All answers ▸How can you increase the yield of product from a reaction?
Explain, in terms of its structure, why graphite is able to be used as a lubricant
State the effect that increasing the temperature has on the rate of the reaction. Explain this effect in terms of particles and collisions.
A sodium hydroxide solution is made by dissolving 3.5 g of sodium hydroxide with 500 cm^3 of water. What is the concentration of the solution in g dm^-1?