Periodic table Flashcards
What physical properties to metals have
malleable and conduct electricity
What properties do alkali metals have (Group 1)
Low melting points, Soft, Easily cut and very reactive.
How does the reactivity change when going down the group in group one
Reactivity increases the further down you go in group one
What does the electronic configuration look like on a group 1 atom
2.8.8.1 or 2.8.8.8.1 always has one electron on outershell
Why are group one metals more reactive as you go down the group
Atoms get larger down the group, meaning less force of attraction, meaning easily lost electron resulting in a higher reactivity.
How are halogens found
Diatomic, two atoms held together by a single covalent bond
What are properties of non-metals
Poor conductors of heat and electricity
What is formed when an halogen reacts with a metal
It forms a salt
What are the uses for halide salts
Toothpastes, eating salts, disinfectant…
What can all halogens be used for
Disinfectants
What does the electronic configuration look like on a group 7 atom
Group 7 atoms will have a 2.8.7 or 2.8.18.7 configuration.
Why do halogens become less reactive as you go down the group
Distance of shells increases, force of attraction is less, which means that it is harder to pull negative electrons, and so ions dont form as easily
What are some properties of noble gases (group 0)
Colourless, low melting points and boiling points, poor conductors of heat and electricity.
What is special about noble gases
They are inert, meaning they do not react easily with anything
How do noble gases exist
As single atoms
