Question

question 1 identify the electron configuration (5 correct) use your periodic table for reference. identify the electron configuration of zirconium.

Explanation:

Step1: Locate zirconium

Zirconium (Zr) has atomic number 40.

Step2: Apply electron - filling rules

Electrons fill orbitals in the order 1s, 2s, 2p, 3s, 3p, 4s, 3d, 4p, 5s, 4d, etc.

Step3: Fill electrons

1s²2s²2p⁶3s²3p⁶4s²3d¹⁰4p⁶5s²4d²

Answer:

1s²2s²2p⁶3s²3p⁶4s²3d¹⁰4p⁶5s²4d²