Random Flashcards
(36 cards)
What does the group number tell you about the element?
Number of electrons on the outer shell
What are metals?
Elements that can form positive ions when they react
What are non metals
Elements that don’t generally form positive ions
How do metals tend to get a full outer shell?
Loosing elections
Where do metals get more reactive?
Bottom left of the periodic table
Where do non-metals get more reactive ?
Top right of the period table
Where are metals on the periodic table table?
Bottom left
Where are non metals in the periodic table?
Top right
Properties of metal in:
•Appearance
•Strength
•Melting and boiling points
•Conductivity
•Shiny
•Strong but malleable
•High
•Good (electric and thermal)
Properties of NON metal in:
•Appearance
•Strength
•Melting and boiling points
•Conductivity
•Dull
•Brittle
•Low
•Poor conductors
What is the common name for group 1 metals?
Alkali metals
As you go down group 1, what happens with reactivity?
Increases
What are the group 0 elements?
Non metals with full outer shells
What is the name for group 0
Noble gasses
Group 0 has a stable electronic structure, meaning they are what?
Unreactive
Group 7 metals are non metals known as what?
Halogens
What is the appearance of the halogen Fluorine?
Yellow gas
What is the appearance of the halogen Chlorine?
Dense green gas
What is the appearance of the halogen Bromine?
Volatile Red-brown liquid
What is the appearance of the halogen Iodine?
Dark grey solid or Purple vapour
What happens to reactivity going down group 7
Decreases
Since halogens have 7 outer shell electrons, they need how many more?
1 electron
What are the two ways of filling out an outer shell?
Sharing electrons (Covalent)
And Loosing/Gaining an electron (Ionic)
What do more reactive halogens do to less reactive ones?
Displace them