Metals Flashcards
What is metallic bonding
The electrostatic force between positively charged ions and delocalised electrons
Do metallic elements conduct
Yes because they contain delocalised electrons
True or false all metals are soluble in water
False all metals are insoluble in water
What is formed when a metal reacts with water
Metal hydroxide and hydrogen
What is the reactivity series of metals from most to least
Potassium, sodium, lithium, calcium, magnesium, aluminium, zinc, iron, tin, copper, mercury, silver and gold
What is formed when a metal reacts with oxygen
Metal oxide
What is formed when a metal reacts with a dilute acid
Salt and hydrogen
What metals can be extracted by only using heat
Gold, silver and mercury
What metals can be extracted by heating with carbon or carbon monoxide
Copper, lead, tin, iron and zinc
What metals can only be extracted through electrolysis
Aluminium, magnesium, sodium, calcium, potassium and lithium
What is electrolysis
The decomposition of an ionic compound into its elements using electricity
When would a d.c. supply be used in electrolysis
If the products of electrolysis are to be identified
What happens to positive ions at the negative electrode
They gain electrons
What happens to negative ions at the positive electrode
They lose electrons
