Question

question 17 (2 points) saved write the predicted electron configuration for neptunium. upload your answer. do not write your answer here!

Explanation:

Step1: Recall electron - filling rules

Electrons fill orbitals in the order of increasing energy: 1s < 2s < 2p < 3s < 3p < 4s < 3d < 4p < 5s < 4d < 5p < 6s < 4f < 5d < 6p < 7s < 5f < 6d etc.

Step2: Determine atomic number of Neptunium

Neptunium (Np) has an atomic number of 93.

Step3: Write electron configuration

Starting with the lowest - energy orbitals:
1s²2s²2p⁶3s²3p⁶4s²3d¹⁰4p⁶5s²4d¹⁰5p⁶6s²4f¹⁴5d¹⁰6p⁶7s²5f⁴6d¹

Answer:

1s²2s²2p⁶3s²3p⁶4s²3d¹⁰4p⁶5s²4d¹⁰5p⁶6s²4f¹⁴5d¹⁰6p⁶7s²5f⁴6d¹