2.2.1 Electron Structure Flashcards
What do electrons orbit the nucleus in
Shells
What shell is closets to nucleus
What’s its energy like
1st
Lower energy
What energy like further away from nucleus
Higher in energy
What is an orbital
A volume of space of defined shape electrons occupy
Shape in which electrons move
What’s the probability of finding the electron in an orbital
95%
How many types of orbital does 1st level have
What’s the orbital called
1
S orbital
How many types of orbital does 2nd level have
What’s the orbital called
2
S & P orbitals
How many types of orbital does 3rd level have
What’s the orbital called
3
S, P & D orbitals
How many types of orbital does 4th level have
What’s the orbital called
4
S, p, d + f orbitals
What’s maximum electrons each orbital can hold
2
How many orbitals are in S sub-shell
How many electrons
1
2 electrons
How many orbitals are in p sub-shell
How many electrons
3
6 electrons
How many orbitals are in D sub-shell
How many electrons
5
10 electrons
How many orbitals are in f sub-shell
How many electrons
7
14 electrons
How many electrons in 1st 3 orbitals
18
What the shape of s orbital
Spherical
What are the 2 electrons doing on the s orbital
Repelling eachother
What shape is p orbital
Dumbbell
What’s the aufbau principle
Lowest energy levels are filled first
What’s the anomaly between energy levels that are filled first
4s is filled before 3d as it is at a lower energy level
What’s the largest electron configuration
36Kr
What’s Hund’s rule
In a set of orbitals of equal energy, the electrons will singly fill up these orbitals before pairing up with the opposite spins
What 2 things allow us to find the electronic configuration of all elements
Hund’s rule
Aufbau principle
What notation is sometimes used for electron configuration
Box notation
What version of box notation can sometimes be used
Shorthand version
What groups are in S-block
Groups 1+2
What groups contain p-block elements
Groups 3-8
What elements are in d-block
Transition metals (between groups 2&3)
Why does 3d fill before 4s
It’s in lower energy
