The exceptions

[Alexis Robles 2k]

What were the two exceptions in the electron configuration?

[BritneyP- 2c]

The 2 exceptions are copper and chromium

[Betania Hernandez 2E]

The exceptions are chromium and copper. Chromium is an exception because a half filled d-sub level is more stable than a partially filled d sub level. The same goes for Copper where it is more stable as a completely filled d-sub level.

[JTijerina_4A]

It's helpful to remember that when dealing with elements that may be exceptions, fill the orbitals according to n instead of according to energy levels. For example, when filling copper, fill the 4s orbital before 3d.

[Viviana Velasquez]

Copper and Chromium are two exceptions.

[Hussain Chharawalla 1G]

Another exception that showed up on the midterm was Nitrogen. Because these atoms have a half filled orbital and are stable, they have a higher ionization energy than expected.

[105311039]

The two exceptions are copper and chromium, the rest of the group under those two elements.