What is the abbreviated electron configuration for argon?

Answer 1

The element argon (atomic number 18) has the electron configuration

1s22s22p63s23p6

which can be abbreviated [Ne] 3s23p6

Answer 2

The abbreviated electron configuration for argon is [Ne] 3s^2 3p^6. The [Ne] represents the electron configuration of the noble gas neon, which has the same electron configuration as the inner electrons of argon.