4: States of Matter Flashcards
(12 cards)
What is the boiling point?
The temperature at which a substance changes from a liquid state to a gaseous state.
What is electrical conductivity?
A measure of the amount of electrical current a material can carry or its ability to carry the current.
What is a giant ionic lattice?
A regular repeating structure made up of oppositely charged ions.
What is a giant metallic structure?
A large structure made of positively charged ions and a sea of delocalised electrons.
What is a giant molecular structure?
Large structures containing lots of atoms that are covalently bonded to each other, usually arranged in a regular lattice.
E.g. Diamond.
What is an ideal gas?
A model of gases that assumes that gas molecules are perfect spheres that move in straight lines at a constant speed.
What are intermolecular forces? [2]
The forces which exist between molecules. The strength of the intermolecular forces impacts physical properties like boiling/melting point.
What is an ionic compound? [4]
A compound made up of anions and cations, which are held together by ionic bonds ,due to the electrostatic attraction between oppositely charged ions. These structures are neutral overall.
What is the melting point?
The temperature at which a substance changes from solid state to liquid state.
What is metallic bonding?
Strong electrostatic attraction between positive metal ions and the sea of delocalised electrons that surround them.
What is a simple molecular structure?
Atoms that are covalently bonded together to form molecules.
What is solubility?
The ability for a given substance to dissolve in a solvent.
