Question

express your answer in condensed form in order of increasing orbital energy as a string without blank space between orbitals. for example, he2s²2p⁶ should be entered as he2s^22p^6.

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, he2s²2p⁶ should be entered as he2s^22p^6.

Explanation:

Step1: Identify Ni's atomic number

Nickel (Ni) has an atomic number of 28, so it has 28 electrons.

Step2: Find noble gas core

The noble gas preceding Ni is Argon (Ar), which has 18 electrons.

Step3: Fill remaining electrons

We need to fill 28 - 18 = 10 more electrons. Follow the orbital filling order: $4s$ fills before $3d$. The $4s$ orbital holds 2 electrons, and the remaining 8 electrons go to the $3d$ orbital.

Answer:

[Ar]4s^23d^8