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Assessment feedback Mindmap - Coggle Diagram
Assessment feedback Mindmap
Group 1: Alkali metals
Sodium, Lithium, Potassium, Rubidium, Franium, Caesium
Alkali metals are very reactive metals
Alkali metals react viggourusly with water
As you go down the group, metals get more reactive
Alkali metal + Cold/mild water---->Hydroxide(Hydrogen Gas)
Squeaky pop test is the test used to detect hydrogen gas
Reactivity through the group increases as you go down as the outer electron on the outer shell is lost easily in the reaction
Group 7: Halogens
7 electrons on the outer shell is the max
As you go down group. 7, melting and boiling points increase
Flourine, Chlorine, Bromine, Iodine and Astatine
As you go down group 7, Reactivity decreases, elements become less reactive
Test for chlorine: Damp Blue Litmus paper
More reactive halogens will replace less reactive halogens
At room Tempreture
Chlorine: Green Gas
Bromine: Redish brown liquid
Iodine: Dark grey solid
Group 0: Noble Gasses
Noble Gasses are colorless, monatomic gasses with low chemical reactivity.
Hilium, Neon, Argon, Krypton, Xenom and radioactive radon.
Noble gasses are the most stable due to having the maximum number of valence electrons their outer shell can hold. Which means that they rarely react with other elements since they are already stable.
Noble gasses are arranged in order of their density.
Hydrogen is the lightest gas in the world
Noble gasses are very stable chemicals that do not react easily with other chemicals, meaning that they are not flamable.