Question

identify whether longhand notation or noble - gas notation was used in each case below. potassium (k): 1s²2s²2p⁶3s²3p⁶4s¹ longhand notation noble - gas notation

Explanation:

Longhand notation lists all the electron - occupied orbitals from the 1s orbital. Noble - gas notation uses the symbol of the nearest noble gas with a lower atomic number to represent the inner - shell electrons. The given notation for potassium lists all the orbitals from 1s to 4s without using a noble - gas symbol for inner - shell electrons.

Answer:

longhand notation