periodic table Flashcards
alkali reactions with oxygen
form oxides, white solids that are soluble in water to give alkaline solutions
alkali metal trends
- m.p decreases down the group
- reactivity increases down the group
- density increases down the group
halogen trends
- diatomic molecules
- low m.p and b.p
- non-conductor of heat and electricity
- more soluble in organic substances than water
- density increases down the group
- reactivity decreases down the group
halogen appearance
iodine- grey-black solid
chlorine- pale yellow-green gas
bromine- red-brown liquid
displacement reaction
a more reactive halogen will displace another less reactive halogen that is in solution as a halide ion
transition metal properties
- high m.p
- hard
- more dense than group 1 and 2
- form coloured compounds
- good catalysts
- good heat and electricity conductors
- malleable and ductile
- less reactive than group 1 and 2
- form more than one type of ion as they have multiple oxidation states
general periodic table trends
- full outer shell makes atom stable
- density increases down the groups
define monoatomic
only contains one atom
which 2 gases are used for light bulbs
neon and argon
helium uses
- balloons
- LCD panels
argon uses
- lights
- fire extinguishers
neon uses
- lasers
- vacuum tubes
xeon uses
- lamps
- projectors
noble gases properties
- low b.p and m.p
- density increases down the group
- unreactive
- colourless
-monoatomic
why do noble gas densities increase?
atoms get larger therefore intermolecular forces get larger
another name for noble gases
inert gases
chlorine water effect on indicator paper
red
bromine water effect on indicator paper
yellow
iodine water effect on indicator paper
none/brown
iron nail properties
- dull
- brown/black
- magnetic
nickel properties
- shiny
- silver
- magnetic
copper properties
- shiny
- orange ish
- not magnetic
