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 ▸The element sulfer is a common componant of coal. When the coal is burned, what pollutant will the sulfer form? How will this new compound impact the environment?
What does a mixture consist of?
Describe how and explain why vegetable oils are hardened for use in foods.
How does hot water in lakes make fish die