Question

How do I write 1s^2 2s^2 2p^4 in shorthand version?

Answer 1

[He]2p^4

Like that

Answer 2

You use noble gas configurations to write shorthand form.

Answer 3

How do I know which noble gas to choose?

Answer 4

@photon336

Answer 5

Moving back on the periodic table from where you are, pick the last one. So if you're in somewhere in period 3, then you would use a noble gas from the previous period, in this case two along with the remaining hybridization from that point on so [He] 2s^2 2p^2 woud be carbon