Group Properties Flashcards
1
Q
Physical properties of alkali metals
A
- soft
- lustrous
- low density
- low melting/boiling point
- good conductivity
2
Q
Chemical properties of alkali metals
A
- extremely reactive
- doesn’t naturally exist in pure form
- stored in an inert liquid (e.g. paraffin oil)
- very strong reducing agent
- reactivity increases downwards
- strong reducing agent
3
Q
Properties of non-metals
A
- brittle
- poor conductors (excluding graphite)
- low melting/boiling points
- low density
- acidic oxide
- anions
4
Q
Physical properties of transition metals
A
- malleable and ductile
- high density
- high melting/boiling points
- sonorous
- cations
- may have magnetic properties
5
Q
Chemical properties of transition metals
A
- forms basic oxides
- forms colored compounds
- forms compounds with variable oxidation numbers
- forms complex ions with excess ammonia
- strong reducing agent
7
Q
Catalyst of Haber’s process
A
Finely divided iron
8
Q
Catalyst of Contact Process
A
Vanadium (V) oxide
9
Q
Physical properties of halogens
A
- low melting/boiling point
- bad conductor
- dissolves readily in organic solvents
- chlorine, bromine, and iodine are soluble in water
10
Q
State of fluorine at room temperature
A
Yellow, gaseous
11
Q
State of chlorine at room temperature
A
Gaseous, greenish-yellow
12
Q
State of bromine at room temperature
A
Liquid, reddish-brown
13
Q
State of iodine at room temperature
A
Solid, greyish-black
14
Q
State of astatine at room temperature
A
Solid, black
15
Q
Chemical properties of halogens
A
- strong oxidising agents
- with transition metals, halogens form solid metal halides of the highest oxidation state
- with alkali metals, halogens form ionic halides
- reactivity increases up the group
16
Q
Catalyst of Ostwald Process
A
Platinum
