Question

part b ni express your answer in condensed form in order of increasing orbital energy as a string without blank space between orbitals. for example, he2s^22p^6 should be entered as he2s^22p^6.

Explanation:

Step1: Find Ni's atomic number

Nickel (Ni) has an atomic number of 28.

Step2: Identify noble gas core

The preceding noble gas is Argon (Ar, Z=18), so use [Ar] as the core.

Step3: Fill remaining electrons

Remaining electrons: $28-18=10$. Fill orbitals by energy: $4s^2$ first, then $3d^8$.

Answer:

[Ar]4s^23d^8