Metals And Non-metals Flashcards
(43 cards)
What happens to metals electrons to gain an empty outer shell? 
Always lose electrons to form a positive ion 
What happens to nonmetals electrons to gain a full outer shell? 
Always accept electrons to form negative ions 
What a group one metals called
Alkaline metals 
What happens when alkali metals come into contact with water? 
They react and produce an alkali 
What is the charge of the ions of group one metals? 
1+
What happens to the metals in group one as you go down the group? 
They get more reactive 
Why do group or metals get more reactive as they go down the group? 
The further down the group, the further the outer electron is from the nucleus
What does it mean if the outer electron is further away from the nucleus? 
There is weak electrostatic attraction 
What are group 7 called?
The halogens 
What are halogens? 
They all need to accept one electron to gain an outer shell and they all form 1- ions 
What happens to halogens as you go down their group?
They get less reactive down the group and the boiling point increases going down the group 
What a group 0 called
Noble gases 
Properties of noble gases 
Have empty outer shells so very unreactive 
What ions do group 1s form? 
1+
What ions do group 2 form? 
2+
What ions do group 7 form?
1+
What ions do group 6 form? 
2+
What irons do aluminium form? 
3+
Calculation for rate of reaction 
Rate = change in quantity/ product made
Practical test rate of reaction 
Hydrochloric acid +sodium thiosulphate causessolution to go cloudy 
Measure the amount of time cross under beaker can’t be seen
Repeat it different temperatures 
Ways to increase rate of reaction 
- increase surface area / concentration /. Pressure 
- increasing temperature.
- Adding a catalyst. 
Why does increasing surface area increase the rate of reaction? 
More particles collide 
Why does increase the temperature increase rate reaction? 
Particles move faster so collide more 
Exothermic reaction 
Gets hot
