Metals Flashcards
Why are metals able to conduct electricity?
The outer electrons are delocalised, and free to move, allowing them to carry and conduct electricity
Describe the structure of a metal
A metal is a giant lattice of positively charged ions and delocalised outer electrons
What is metallic bonding?
An electrostatic attraction between positively charged nuclei and outer delocalised electrons in metal atoms
What are metals good conductors of?
Heat and electricity
In what direction to electrons travel?
From negative to positive
Why are metals described as being malleable?
They can be bent and hammered into different shapes
Why are metals described as being ductile?
They can be pulled and squeezed to produce wires
What is reactivity?
Reactivity is a measure of the amount of energy given out when a metal reacts
What is an oxidation reaction?
A reaction where a reactant loses electrons
What is a reduction reaction?
A reaction where a reactant gains electrons
The extraction of metals from compounds is what type of reaction?
A reduction reaction
During electrolysis, used to extract metals, what type of reaction occurs at the negative electrode?
A reduction reaction
What is an electrolyte?
A liquid that conducts electricity, usually used to complete a circuit in a cell
What is the purpose of an ion bridge?
To allow the movement of ions to complete the circuit
What is produced when metals react with water?
Metal hydroxide + hydrogen gas
