Lithium, sodium and potassium are Group 1 elements.
What happens when these elements are added to water?
Some float and carbon dioxide gas and an alkaline solution are made.
Some float and hydrogen gas and an alkaline solution are made.
They all float and hydrogen gas and an acidic solution are made.
They all float and hydrogen gas and an alkaline solution are made.
Did this page help you?
Which of these elements is a transition metal?
Calcium
Caesium
Carbon
Cobalt
Did this page help you?
The bar chart shows the melting points of Group 1 elements.
What are the melting points of rubidium and caesium?
| Melting point of rubidium (°C) | Melting point of caesium (°C) |
A | 39 | 29 |
B | 40 | 25 |
C | 29 | 41 |
D | 41 | 25 |
Did this page help you?
Which statement about noble gases is not correct?
They are diatomic
They have low densities
Their boiling points increase going down the group
They are unreactive
Did this page help you?
Lithium, sodium and potassium all react with water.
In all three reactions the same gas is produced.
What is the name of the gas?
Carbon dioxide
Chlorine
Hydrogen
Oxygen
Did this page help you?
Astatine is found below iodine in Group 7 of the periodic table.
What is its formula and state at room temperature?
| Formula | State at room temperature |
A | At | gas |
B | At | solid |
C | At2 | liquid |
D | At2 | solid |
Did this page help you?
When sodium reacts with water an alkaline solution is formed.
Which statement about why this happens it true?
It contains an ionic compound
It contains hydroxide ions
It contains water
Hydrogen gas is made
Did this page help you?
Transition metals are located in the middle of the periodic table and have certain properties.
Which two properties do most transition metals have?
| Property 1 | Property 2 |
A | soft | form colourless compounds |
B | high melting points | low densities |
C | high densities | form coloured compounds |
D | form ions with multiple charges | do not conduct electricity |
Did this page help you?
A student carried out a displacement reaction using an unknown halogen and a salt containing a halide ion.
As the reaction progressed they observed the formation of a dark brown solution.
Which halogen and salt did the students react together?
Potassium iodide + bromine
Potassium bromide + chlorine
Potassium chloride + bromine
Potassium chloride + iodine
Did this page help you?
Nitrogen and water are produced when ammonia reacts with oxygen.
A metal oxide catalyst is used to speed up the rate of reaction.
Which of the following metal oxides would most likely be used for this reaction?
Na2O
Li2O
Al2O3
Cr2O3
Did this page help you?
The diagram shows the electron structures of some elements.
Which two elements have similar chemical properties?
A and B
A and C
B and C
B and D
Did this page help you?
A student was investigating the reactivity of different metals in hydrochloric acid.
Which statement about the results is true?
Calcium is more reactive than magnesium because its outer electrons are less easily lost
Copper does not react because it is less reactive than hydrogen
Magnesium is more reactive than zinc because it more readily forms negative ions
Zinc reacts with the HCl to form zinc hydroxide and hydrogen gas
Did this page help you?
The boiling point of the halogens increases down Group 7.
Which statement explains why?
The covalent bonds get stronger going down the group and require more energy to overcome
The intermolecular forces get stronger going down the group and require more energy to overcome
The intermolecular forces get weaker going down the group and require less energy to overcome
The covalent bonds get weaker going down the group and require less energy to overcome
Did this page help you?
The list shows part of the reactivity series of metals including carbon.
Sodium
Lithium
Calcium
Magnesium
Aluminium
Carbon
Zinc
Iron
Tin
Lead
Which row of the table correctly describes how the metals are extracted from their ores?
| Metals extracted by electrolysis | Metals extracted by heating with carbon |
A | Sodium, Magnesium, Zinc | Aluminium, Iron, Tin |
B | Aluminium, Zinc, Iron | Lead, Tin |
C | Calcium, Magnesium, Aluminium | Sodium, Iron, Tin |
D | Sodium, Calcium, Magnesium | Lead, Tin, Zinc |
Did this page help you?
Which statement describes the properties of transition metals?
High melting point, shiny when freshly cut and brittle.
Good conductors of electricity, low density and low melting point.
Good conductors of electricity, strong and malleable.
Strong, malleable and low density.
Did this page help you?
Zinc, Zn, reacts with copper sulfate solution, CuSO4.
Zn (s) + CuSO4 (aq) → ZnSO4 (aq) + Cu (s)
What type of reaction is this?
Combustion
Displacement
Neutralisation
Thermal decomposition
Did this page help you?
Which statement is correct for a Group 1 element?
It dissolves in water to form a bleach.
It is an inert gas.
It is a non-metal.
It reacts with water to form hydrogen.
Did this page help you?
A student reacts some metals with different salt solutions and records her results.
She places a tick (✓) in her results table if she sees a chemical change and a cross (×) if there is no reaction.
Some of the boxes are blanked out.
| Magnesium chloride | Silver nitrate | Copper(II) sulfate | Iron(II) sulfate |
Magnesium |
| ✓ | ✓ | ✓ |
Silver | × |
| × | × |
Copper | × | ✓ |
| × |
Iron | × | ✓ | ✓ |
|
What is the order of reactivity (most reactive to least reactive) of these four metals?
Iron, silver, magnesium, copper
Magnesium, copper, iron, silver
Magnesium, iron, copper, silver
Silver, copper, iron, magnesium
Did this page help you?
Look at the data about four elements.
Element | Melting point (°C) | Density (g / cm3) | Ions formed |
A | 98 | 0.97 | A+ |
B | –101 | 0.0032 | B– |
C | 1535 | 7.9 | C2+, C3+ |
D | 660 | 2.7 | D3+ |
Which element is a transition element?
Did this page help you?
Bromine reacts with sodium iodide.
What is the balanced symbol equation for the reaction?
Br + NaI → NaBr + I
Br2 + NaI → NaBr + I2
Br2 + 2NaI → 2NaBr + I2
Br2 + NaI2 → NaBr2 + I2
Did this page help you?
The Group 7 element fluorine is a gas at room temperature and pressure.
The Group 7 elements show a trend in boiling points going down the group.
Which row shows the boiling points of the Group 7 elements?
| Boiling Point (°C) | |||
| Fluorine | Chlorine | Bromine | Iodine |
A | –188 | 59 | 184 | -15 |
B | –188 | -34 | 59 | 184 |
C | 188 | 184 | 59 | -15 |
D | -15 | 184 | 188 | 59 |
Did this page help you?
Chlorine can displace iodine from iodide ions.
Which equation represents this reaction?
Cl + I– → Cl – + I
Cl – + I2 → 2I– + Cl2
Cl2 + 2I– → 2Cl – + I2
Cl2 + I– → 2Cl – + I
Did this page help you?
A student reacts some metals with different salt solutions and records her results.
She places a tick (✓) in her results table if she sees a chemical change and a cross (✗) if there is no reaction.
Some of the boxes are blanked out.
| Magnesium chloride | Silver nitrate | Copper(II) sulfate | Iron(II) sulfate |
Magnesium |
| ✓ | ✓ | ✓ |
Silver | ✗ |
| ✗ | ✗ |
Copper | ✗ | ✓ |
| ✗ |
Iron | ✗ | ✓ | ✓ |
|
Which metal has the least tendency to form a positive ion?
Copper
Iron
Magnesium
Silver
Did this page help you?
Group 1 elements get more reactive down the group.
Which statement explains why?
The outer electron is closer to the nucleus and lost more easily.
The outer electron is further from the nucleus and lost more easily.
There is less shielding from the inner electrons.
There is more attraction between the nucleus and the outer electron down the group.
Did this page help you?
A solution of a lithium halide and a halogen are mixed together. A reaction occurs and the mixture darkens in colour.
What is present in the reaction mixture?
Bromine and lithium chloride
Bromine and lithium fluoride
Chlorine and lithium iodide
Chlorine and lithium fluoride
Did this page help you?
Properties of four alkali metals labelled are shown in the table. Which one is placed lowest in the group?
| melting point / oC | density / g cm-3 |
A | 39 | 1.50 |
B | 28.5 | 1.93 |
C | 98 | 0.98 |
D | 63.5 | 0.86 |
Did this page help you?