which is the electron configuration for zinc?\n1s²2s²2p⁶3s²3p⁶4s²3d⁸\n1s²2s²2p⁶3s²3p⁶4s¹3d¹⁰\n1s²2s²2p⁶3s²3p⁶…

Answer:

1s²2s²2p⁶3s²3p⁶4s²3d¹⁰

Explanation:

Step1: Recall zinc's atomic number

Zinc has atomic number 30.

Step2: Fill orbitals according to rules

Fill orbitals in order of increasing energy (1s < 2s < 2p < 3s < 3p < 4s < 3d). 1s can hold 2 electrons, 2s 2 electrons, 2p 6 electrons, 3s 2 electrons, 3p 6 electrons, 4s 2 electrons and 3d 10 electrons. 2 + 2+6 + 2+6 + 2+10 = 30.