Atomic orbitals

https://www.youtube.com/watch?v=6jKTbT81jY8

What is the principal quantum number / ‘n’

Each shell is given a number. The first shell has principal quantum number of 1, second is 2, third is 3 and 4th is 4. We can calculate max number of electrons in each shell by doing 2n²

Whats an atomic orbital

Its a region around the nucleus that can hold up to 2 electrons with opposite spins. You need to know that electrons can either have an up spin or a down spin. When we have 2 electrons in the same orbital, these 2 electrons must have opposite spins , we cannot have 2 electrons both with an up spin or both with down.

Whats an electron

A cloud of negative charge, this has the shape of the orbital occupied by electron. The atomic orbital shows us 95% probability of where an electron will exist.

What are the different types of atomic orbitals

s, p ,d and f

Whats an s orbital.

Its a spherical shape, and every electron shell contains a single s orbital.

What are p orbitals

there are 3 p orbitals, shaped like dumb bells. Every shell apart from the first one contains three p orbitals.

What are d orbitals

There are 5 d orbitals with complicated shapes we dont need to know. Every shell apart from shells 1 and 2 have five d orbitals.

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Whats a subshell

All of the orbitals of the same type in the same shell. u do not need f orbitals