Question

19. What is the correct electronic configuration of Zirconium (Zr)?

Hint: count the number of electrons of Krypton (Kr). This helps to find the
correct answer.
A. 1s 2s 2p 3s 3p 4s²3d¹04p 5s²4d² or
[kr] 4d²
B. 1s²2s²2p 3s²3pº4s²3d¹04p65s4d² or
[Kr] 5s²4d²
C. 1s²2s22p 3s 3p 4s²3d¹04p65s²4d² or [kr] 4p65s²4d²
D. 1s²2s²2p 3s 3p64s²3d¹04p65s4d² or [Kr]3d¹04p65s²4d²
O Option A
Option 4
Option 3
O Option 2

Answer 1

The correct electronic configuration of Zirconium is [Kr] 5s2 4d2.

Step-by-step explanation:

The correct electronic configuration of Zirconium (Zr) is [Kr] 5s24d2. The hint to count the number of electrons in Krypton (Kr) is useful because Zirconium has two additional electrons after the 4d2 configuration. Krypton has 36 electrons, so adding two more electrons gives Zirconium its full electronic configuration.

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