Electron Information And Structure Flashcards
(15 cards)
What is electron configuration?
A numerical way of representing how the electrons are arranged in the electron shells.
How do we write the electron configuration?
We write the number of electrons in each shell followed by commas, starting with the innermost shell. E.g. 2, 8, 2
Can electron configuration be used for ions?
Yes, it can be used for atoms or monatomic ions.
What is the maximum number of electrons in the first shell?
The first shell can only take up to 2 electrons.
What is the maximum number of electrons in the other shells?
The rest of the shells can take up to 8 electrons.
How do we represent electrons in the shells of the diagram?
We draw electrons in the shells as dots or crosses.
How do we represent an ion in the electron shell diagram?
We draw square brackets around the diagram and put the charge on the top right.
What is a molecule?
A small cluster of atoms bonded together, ranging from 2 to hundreds of thousands of atoms. E.g. H2
What is a lattice?
A large 2-D or 3-D network/grid of atoms bonded together, involving billions of atoms with long-range order.
What is the difference between a large molecule and a lattice?
A large molecule is a small cluster of atoms, while a lattice is a large network of bonded atoms.
What is an element?
A substance made up of only 1 ‘type’ of atom (in terms of the number of protons).
What is a compound?
A substance made up of 2 or more ‘types’ of atoms bonded together.
What are mixtures?
Combinations of different substances that are NOT bonded to each other.
What do atom, molecule, and lattice refer to?
They refer to the number of atoms involved and the way they are arranged.
What do element, compound, and mixture refer to?
They refer to the types of atoms involved. (Ingredients)
