C2 Flashcards
Why are noble gases stable
They have full outershell
What are reactive metals
Metals from group 1 and 2 which act vigerously with other elements. They are all soft
What are transtition elements
Metals that arent usually reactive but some like silver and gold are very unreactive
What are group 1 metals called
Alkali metals
Properties of alkali metals
Very reactive
Low density
Very soft
Low boiling point
What happens if you add potassium into water
All of them fizz because they release hydrogen gas.
Potassium - reacts vigerously that the hydrogen produce ignites and burns with a lilac flame
What hydroxide does potassium make with water
Potassium hydroxide
What hydroxide is made with sodium in water
Sodium hydroxide
Properties of halogens
Low melting points
Poor conductors of heat and electricity
How does a displace reaction take place between halogens
A more reactive holgen will displace a less reactive halogen from solution of its salts
How the reactivity series work in halogens
gets less reactive as you go down the reactive for flourine is the most reactive
Properties of transition elements
Good conductos of electrcitiy amd thermal energy
Hard and strong
High densities
High melting points
As you go down group seven the halogens…
Become less reactive
Higher melting and boiling points
Have higher relative atomic mass
What is the difference between group 1 metals and transition metals
Group 1 metals are more reactive - usually really reactive with water, oxygen or group 7 metals
They are LESS denser, stronger and harder than transition metals
Group 1s have lower melting points
