Chemistry 3.1
- Created by: frankie306
- Created on: 20-03-15 10:26
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- Chemistry 3.1
- Elements arranged in a periodic table
- grouped in elements with similar properties
- John Newlands
- built on Dalton's ideas
- arranged elements in order of mass
- every eight element similar
- law of octaves
- work ignored
- no gaps left for unknown elements
- Dmitri Mendeleev
- arranged elements in order of atomic weights
- predicted properties of unknown elements
- group 1 metals
- stored in oil
- prevent from reacting with oxygen
- alkali metals
- form ions with H + charge
- low density-float on water
- reactivity
- increases down the group
- soft
- can be cut with a knife
- melting point decreases down the group
- react vigorously with non metals
- form ionic compounds
- water
- hydrogen + metal hydroxide
- stored in oil
- Group 7 elements
- halogens
- melting point
- increase down group
- reactivity
- decreases down the group
- + metal
- ionic compound
- flourine
- yellow
- gas at rm temp
- ionic bond
- halide ion
- chlorine
- green
- gas at rm temp
- bromine
- red-brown
- liquid at rm temp
- iodine
- purple
- solid at m temp
- transition metals
- strong
- good conductors
- malleable
- sonourous
- ductile
- high density
- high melting point
- hard
- copper
- Cu 2+
- blue
- Cu 2+
- iron
- Fe 2+
- green
- Fe 3+
- brown
- Fe 2+
- used as catalysts
- nickel
- hydrogenation
- margarine
- iron
- haber process
- hydrogenation
- nickel
- Elements arranged in a periodic table
- transition metals
- strong
- good conductors
- malleable
- sonourous
- ductile
- high density
- high melting point
- hard
- copper
- Cu 2+
- blue
- Cu 2+
- iron
- Fe 2+
- green
- Fe 3+
- brown
- Fe 2+
- used as catalysts
- nickel
- hydrogenation
- margarine
- iron
- haber process
- hydrogenation
- nickel
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