C2.1 The Periodic Table Flashcards
What are the properties of metals?
-Conduct heat -Conduct electricity -Malleable (can be hammered into shape) -Lustrous (shiny) -Sonorous (make a ringing noise when hit) -High density
What are the properties of non-metals?
-Insulators of heat -Insulators of electricity -Brittle (break easily) -Dull -Low density
What is group 1 also known as?
The alkali metals
What is group 7 also known as?
The halogens
What is a displacement reaction?
When a more reactive element takes the place of a less reactive element
How does sodium react with water?
-Fizzes -Indicator changes from green to purple -Disappears -Floats -Moves on top of the water
Write a word equation for the reaction of sodium with oxygen
Sodium + Oxygen –> Sodium Oxide
Write a word equation for the reaction of sodium with water
Sodium + Water –> Sodium hydroxide + Hydrogen
Write a symbol equation for the reaction of sodium with oxygen
4Na(s) + O2(g) –> 2Na2O(s)
Write a symbol equation for the reaction of sodium with water
2Na(s) + 2H2O(l) –> 2NaOH(aq) + H2(g)
Why doesn’t bromine react with potassium chloride?
Because chlorine is more reactive than bromine so bromine can’t displace chlorine
Write a word equation for the reaction of iron with chlorine
Iron + Chlorine –> Iron Chloride
Describe the trend in reactivity in group 1
Group 1 get more reactive as you go down the group
Describe the trend in reactivity in group 7
The halogens get less reactive as you go down the group
Finish the following word equation
Potassium Bromine + Chlorine –>
Potassium Brominde + Chlorine –> Potassium Chloride + Bromine
