Minerals to Metals Part 3 Flashcards
What state are metals at room temperature, and what is the one exception?
Metals are solids at room temperature, with the exception of mercury which is a liquid
What is the melting points of metals like and how does this benefit them?
They have a high melting point, and are excellent conductors of heat and electricity
What is the hardness of metals like and what does that mean they can do?
They are hard and malleable, which means they can be flattened and shaped
What is the strength and ductility of metals like and what does this allow them to do?
They are strong and ductile, which means they can be drawn into wires and are not easily broken
What is the denseness and sonorousness of metals and what does this mean?
Metals are dense and sonorous, which means their atoms are packed closely together and they are capable of vibration
What happens when the atoms of metals get very close to each other?
The outer electron shells merge together and create a sea of electrons
What happens to the sea of electrons?
They become delocalised and are free to move through the whole structure
What do delocalised electrons in metallic bonding allow?
Metals to conduct heat and electricity
What happens to the delocalised electrons when a metal is heated?
They gain kinetic energy
What happens during metallic bonding?
The metal atoms become positive charged ions and are attracted to the sea of electrons
What is metalling bonding?
When a metal bonds with a metal, such as gold
What is ionic bonding?
When a metal bonds with a non-metal, such as salt
What is covalent bonding?
When a non-metal bonds with a non-metal, such as water
Why does gold have such high melting and boiling points?
The strong attraction between positively charged metal ions and the sea of electrons
What happens when a metal is hit?
The layers of metal ions are able to slide over each other, so the surface does not shatter
