Students sort their own groups and look for patterns
19
Potassium
K
2.8.8.1
Metal solid
Chemical properties
Reacts vigorously with
cold water.
3
Lithium
Li
2.1
Metal solid
Chemical properties
Reacts very well with cold
water.
11
Sodium
Na
2.8.1
Metal solid
Chemical properties
Reacts very well with cold
water.
Reacts with oxygen to give Reacts with oxygen to give Reacts with oxygen to give
potassium oxide. (K2O)
lithium oxide. (Li2O)
lithium oxide. (Na2O)
Reacts with chlorine to
give potassium chloride.
(KCl)
1
Hydrogen
H
1
Colourless gas
Reacts with chlorine to
give lithium chloride.
(LiCl)
2
Helium
He
2
Colourless gas
Chemical properties
Chemical properties
Reacts with oxygen to give Is extremely unreactive
water. (H2O)
and does not have any
chemical properties.
Reacts with chlorine to
give hydrogen chloride.
(HCl)
18
Krypton
Kr
2.8.8
Colourless gas
Chemical properties
Is extremely unreactive
and does not have any
chemical properties.
Reacts with chlorine to
give lithium chloride.
(NaCl)
10
Neon
Ne
2.8
Colourless gas
Chemical properties
Is extremely unreactive
and does not have any
chemical properties.
4
Beryllium
Be
2.2
Metal solid
20
Calcium
Ca
2.8.8.2
Metal solid
Chemical properties
Reacts very slowly with
cold water but reacts with
dilute acid.
Reacts with chlorine to
give beryllium chloride.
(BeCl2)
Reacts with oxygen to give
beryllium oxide. (BeO)
Chemical properties
Reacts slowly with cold
water but reacts very well
with dilute acid
Reacts with chlorine to
give beryllium chloride.
(CaCl2)
Reacts with oxygen to give
beryllium oxide. (CaO)
12
Magnesium
Mg
2.8.2
Metal solid
Chemical properties
Reacts slowly with cold
water but reacts very well
with dilute acid
Reacts with chlorine to
give beryllium chloride.
(MgCl2)
Reacts with oxygen to give
beryllium oxide. (MgO)
7
Nitrogen
N
2.5
Colourless gas
Chemical properties
Does not react well with
water, oxygen and dilute
acids.
13
Aluminium
Al
2.8.3
Metal solid
Chemical properties
Reacts with dilute acid
slowly.
5
Boron
B
2.3
Metal solid
Chemical properties
Reacts with dilute acid
slowly.
6
Carbon
C
2.4
Non metal solid
Chemical properties
Does not react with dilute
acids but does react with
Reacts with oxygen to give concentrated acids.
Reacts with both oxygen
boron oxide. (B2O3)
and chlorine to form
carbon tetrachloride (CCl4)
Reacts with chlorine to
and carbon dioxide (CO2).
give boron chloride.
(BCl3)
8
Oxygen
O
2.6
Colourless gas
17
Chlorine
Cl
2.8.7
Pale green gas
Chemical properties
Does not react with acids
or bases
Chemical properties
Reacts with water to form
an acidic solution.
Reacts with hydrogen to
give dihydrogen oxide.
(H2O)
Reacts with other halogens
to form interhalogens.
14
Silicon
Si
2.8.4
Non-Metal solid
Chemical properties
Does not react with dilute
acids but does react with
Reacts with oxygen to give concentrated acids.
boron oxide. (Al2O3)
Reacts with both oxygen
and chlorine to form
Reacts with chlorine to
silicon tetrachloride
give boron chloride.
(SiCl4) and silicon dioxide
(AlCl3)
(SiO2).
15
Phosphorus
P
2.8.5
Non -Metal solid
Chemical properties
Reacts with oxygen to
form phosphorus oxide.
(P4O10).
Reacts with chlorine to
form phosphorus chloride.
(PCl5)
16
Sulphur
S
2.8.6
Yellow non-metal solid
Chemical properties
Reacts with both acids and
bases.
Reacts with hydrogen to
form hydrogen sulphide.
(H2S).
9
Fluorine
F
2.7
Pale yellow gas
Chemical properties
Reacts with water to form
an acidic solution.
Reacts with other halogens
to form interhalogens.