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Chemistry - Coggle Diagram
Chemistry
periodic table
vertical groups
horizontal periods
middle - transition metals
metals to the left
non metals to the right
elements
hydrogen, H2
nitrogen, N2
oxygen, O2
fluorine, F2
bromine, Br2
chlorine, Cl2
iodine, I2
state symbol meaning
(s) Solid
(l) Liquid
(g) Gas
(aq) Aqueous solution
reactions
exothermic
give out heat
feel warm / hot
endothermic
absorb heat
feel cold
No atoms are created or destroyed in a chemical reaction.
form products
displacement
more reactive metals replace less reactive ones in a substance
groups
group 0
noble gasses
unreactive
no need to trade atoms
full outer shell
group 1
very reactive
alkali
group 7
halogens
balancing equations
models a chemical reaction using the formulae of the reactants and products
The numbers of atoms of each element on the left must be the same as they are on the right.