Electron arrangements

How are electrons arranged?

In principal quantum shells

What is used to number the quantum shells?

Principle quantum numbers

Does the energy of the principal quantum shells increase or decrease as they increase?

Energy increases

What are principle quantum shells split into?

Sub-shells

What are the sub-shells called?

s, p, d, f

What do sub-shells contain?

Orbitals

What are orbitals?

Volumes of space in which electrons are most likely to be found

What sub-shell is in the 1st energy level?

1s

What sub-shells are in the 2nd shell?

2s, 2p

What sub-shells are in the 3rd shell?

3s, 3p, 3d

What sub-shells are in the 4th shell?

4s, 4p, 4d, 4f

How many electrons can occupy each orbital?

2 electrons

How many orbitals are in the s sub-shell?

1 orbital

How many orbitals are in the p sub-shell?

3 orbitals

How many orbitals are in the d sub-shell?

5 orbitals

How many orbitals are in the f sub-shell?

7 orbitals

Maximum amount of electrons in each sub-shell

Order in which electrons fill orbitals

What blocks is the periodic table divided into?

Four blocks: s, p, d and f blocks