YOU'RE ON THE WRONG ACCOUNT Flashcards
(45 cards)
How are temporary dipoles made?
Shifting of electron clouds within molecules.
What is the equation for percentage yield?
Actual yield in mol divided by the theoretic yield in mol. Then multiply it by 100.
What is the moles equation?
Mass divided by molar mass
What’s Van Der Waal’s forces?
An induced dipole and a temporary dipole’s forces interacting.
Why are metals strong?
Because metals have strong forces between ions and delocalised electrons.
Why do metals conduct heat?
Their delocalised electrons transfer energy.
Why do metals conduct electricity?
Because delocalised electrons are free to move throughout the structure.
Why are metals shiny?
Because they contain vacant electrons.
What are lattices?
Repeating structures.
Why does Methane have a low boiling point?
Because it has weak intermolecular forces which means there doesn’t need to be much energy to break those foces.
What does a Covalent bond mean?
Shared pair of electrons between two non-metals.
What is an example of a simple covalent compound?
Methane.
What is an example of a giant covalent compound?
Diamond.
When does a Dative covalent bond occur?
When both electrons in a covalent bond are donated by the same atom.
What are ionic bonds?
Bonds between a metal and a non-metal.
What’s an example of an ionic bond?
Sodium Chloride.
Why do smaller ions form stronger bonds?
Smaller ions form stronger bonds because they have a higher charge density.
Why do atoms get bigger when you go down the group?
The atoms get bigger because there are more shells of electrons.
What is an orbital?
An orbital is a region around the nucleus that can hold up to two electrons with opposite spins.
What are ions?
Ions are a charged particle, formed when electrons are lost or gained.
What is the electronic configuration of Hydrogen?
1s¹
What is the electronic configuration of Helium?
1s²
What is the electronic configuration of Lithium?
1s² 2s¹
What is the electronic configuration of Beryllium?
1s² 2s³
