Problem: Write the electronic configuration for:Cr3+Cu2+

FREE Expert Solution

We’re being asked to determine the correct noble gas electron configuration Cr3+ and Cu2+.


For Cr3+:

Before we can do that, we have to first write the electron configuration of a neutral ground state chromium (Cr).

You can determine the ground-state electron configuration of Chromium (Cr) by locating its position in the periodic table.

You see from the periodic table that Cr is in Period 4 and d-block

Before reaching Cr, you will pass through the atomic orbitals 1s, 2s, 2p, 3s, 3p, 4s, 3d
• In a neutral atom:

Atomic number = # of protons = # of electrons
Cr: atomic number = 24 24 protons & 24 electrons

Distribute electrons in the atomic orbitals:

79% (133 ratings)
View Complete Written Solution
Problem Details

Write the electronic configuration for:

Cr3+

Cu2+

Frequently Asked Questions

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the The Electron Configuration: Ions concept. You can view video lessons to learn The Electron Configuration: Ions. Or if you need more The Electron Configuration: Ions practice, you can also practice The Electron Configuration: Ions practice problems.