The Periodic Table Flashcards
Reactive pattern
Atoms with more electrons are more reactive
Group 1 elements
One electron on their outer shell
Alkali metals reactivity
Further down the group the metals are more reactive
Metals in group 1
Lithium Sodium Potassium Rubidium Caesium Francium
Hardness of metals in group 1
Softer further down
Density of metals in group 1
More dense as you go down apart from one element
Atomic size in halogens
Increases downward
Halogens
Fluorine
Chlorine
Bromine
Iodine
Density of halogens
Increases downward
What group are the halogens
Group 7
Reality of halogens
Decreases downward
Electronic configuration of halogens
Diatomic
Halogen + metal
Halide
Displacement reaction
A more reactive halogen will displace a less reactive halide from its compound in a solution
Example of displacement reaction
Chlorine+sodium bromide –> sodium chloride + bromine
Colour pattern in halogens
Darker as you go down
Complex ions
Carbonate Nitrate Hydroxide Phosphate Ammonium Sulphate
What are alkalis stored in and why
Oil to stop them reacting with the water in air
Size of alkali metal pattern
Increase downward
Colour of chlorine
Green yellow gas
Colour of bromine
Red brown liquid
Iodine
Grey/black solid
A halogen and a metal
Forms an ionic salt
Lithium and water
Moves around surface
Hisses
Produces has bubbles
Gets smaller and disappears