Ductile - A property of metals that means they can be stretched into a wire. Malleable - A property of metals that means they can be hammered flat. Solid - Most metals are in this state at room temperature. Thermal conductors - A property of metals that means they are good at conducting heat. Electrical conductors - A property of metals that means they are good at conducting electricity. Lithium - A metal with the symbol Li. This metal forms 1+ ions. Sodium - A metal with the symbol Na. This metal forms 1+ ions. Calcium - A metal with the symbol Ca. This metal forms 2+ ions. Magnesium - A metal with the symbol Mg. This metal forms 2+ ions. Aluminium - A metal with the symbol Al. This metal forms 3+ ions. Copper - A metal with the symbol Cu. This metal forms 2+ ions. Zinc - A metal with the symbol Zn. This metal forms 2+ ions. Iron - A metal with the symbol Fe. This metal forms 2+ or 3+ ions. Ionic - A type of chemical bond in which electrons are donated or received by atoms (or groups of atoms). Covalent - A type of chemical bond in which electrons are shared by atoms. Metallic - A type of chemical bond in which there is a lattice of positive ions in a ‘sea’ of free electrons. Density - The mass divided by the volume of an object. This is high in metals. Alloy - A chemical substance that is formed by mixing other elements into a molten metal. Steel - An alloy of iron in which carbon is added to make the iron stronger. Brass - An alloy of copper and zinc. This alloy is often used to make musical instruments. Sterling silver - An alloy of silver (92.5%) and copper. Bronze - An alloy of copper and tin. Hydrogen - This gas is formed when a metal and an acid react. Carbon dioxide - This gas is formed when a metal carbonate reacts with an acid or decomposes. Reactivity series - A scale that ranks metals according to how reactive they are (two words). Metal hydroxide - When a metal reacts with water, hydrogen gas and a metal hydroxide are formed. Metal oxide - When a metal reacts with oxygen, a metal oxide is formed. Combustion - When a metal reacts quickly with oxygen, we say this has happened. Tarnishing - When a metal reacts slowly with oxygen, we say this has happened. Rusting - When iron reacts with oxygen, we say this has happened. Black - The colour of copper oxide. White - The colour of most metal oxides. Water - When a metal oxide reacts with acid, a metal salt and this substance are formed.
Ductile - A property of metals that means they can be stretched into a wire.
Malleable - A property of metals that means they can be hammered flat.
Solid - Most metals are in this state at room temperature.
Thermal conductors - A property of metals that means they are good at conducting heat.
Electrical conductors - A property of metals that means they are good at conducting electricity.
Lithium - A metal with the symbol Li. This metal forms 1+ ions.
Sodium - A metal with the symbol Na. This metal forms 1+ ions.
Calcium - A metal with the symbol Ca. This metal forms 2+ ions.
Magnesium - A metal with the symbol Mg. This metal forms 2+ ions.
Aluminium - A metal with the symbol Al. This metal forms 3+ ions.
Copper - A metal with the symbol Cu. This metal forms 2+ ions.
Zinc - A metal with the symbol Zn. This metal forms 2+ ions.
Iron - A metal with the symbol Fe. This metal forms 2+ or 3+ ions.
Ionic - A type of chemical bond in which electrons are donated or received by atoms (or groups of atoms).
Covalent - A type of chemical bond in which electrons are shared by atoms.
Metallic - A type of chemical bond in which there is a lattice of positive ions in a ‘sea’ of free electrons.
Density - The mass divided by the volume of an object. This is high in metals.
Alloy - A chemical substance that is formed by mixing other elements into a molten metal.
Steel - An alloy of iron in which carbon is added to make the iron stronger.
Brass - An alloy of copper and zinc. This alloy is often used to make musical instruments.
Sterling silver - An alloy of silver (92.5%) and copper.
Bronze - An alloy of copper and tin.
Hydrogen - This gas is formed when a metal and an acid react.
Carbon dioxide - This gas is formed when a metal carbonate reacts with an acid or decomposes.
Reactivity series - A scale that ranks metals according to how reactive they are (two words).
Metal hydroxide - When a metal reacts with water, hydrogen gas and a metal hydroxide are formed.
Metal oxide - When a metal reacts with oxygen, a metal oxide is formed.
Combustion - When a metal reacts quickly with oxygen, we say this has happened.
Tarnishing - When a metal reacts slowly with oxygen, we say this has happened.
Rusting - When iron reacts with oxygen, we say this has happened.
Black - The colour of copper oxide.
White - The colour of most metal oxides.
Water - When a metal oxide reacts with acid, a metal salt and this substance are formed.