Electron Structure Flashcards
What are atomic orbitals?
Regions around the nucleus that can hold up to two electrons.
What are the four different types of orbital?
s,p,d,f
Which shells contain s orbitals?
Each shell from n=1
What increases as the shell number increases?
The radius of the s orbital
What is the shape of an s orbital?
It is a sphere.
What is the shape of a p orbital electron cloud?
It is a dumb-bell shape.
How many s orbitals are there in each shell?
1
How many p orbitals are there in each shell?
3, at right angles to each other.
Which shells contain p orbitals?
Shells from n=2 onwards contain 3 p orbitals.
What happens to the p orbital as the shell number increases?
The p orbitals get further away from the nucleus.
Which shells contain d orbitals?
Each shell from n=3 onwards.
How many d orbitals are found in each shell?
5
Which shells are f orbitals found in?
Each shell from n=4 onwards.
How many f orbitals are in each shell?
7
What are sub-shells?
This is where orbitals of the same type are grouped together within each shell (as a sub-shell).
What do orbitals fill in order of?
Increasing energy
Which sub-shell has less energy than the 3D sub-shell?
The 4s sub-shell.
Put the following in the right order: 3s 3p 3d 4s 4p
3s 3p 4s 3d 4p
Why do electrons repel each other?
They are negatively charged.
What property, beginning with s, do electrons have?
Spin
Which ways can electrons spin?
Either up or down.
What prevents electron repulsion in an orbital?
Opposite spins
Having one electron occupy each orbital before pairing starts.
What is the electron configuration of Krypton (36electrons)?
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6
What is the shorthand notation?
The nearest noble gas and the outer electron sub shells.
