Question

part 1 (1 point) when writing your answers, do not add spaces and do not try to italicize the orbitals. mn=

Explanation:

To determine the electron configuration of Manganese (Mn), we follow these steps:

Step 1: Recall the atomic number of Mn

Manganese has an atomic number of 25, meaning it has 25 electrons.

Step 2: Build the electron configuration using the Aufbau principle

• The noble gas before Mn is Argon (Ar, atomic number 18), so we start with \([Ar]\).
• Next, fill the 4s orbital (holds 2 electrons): \(4s^2\).
• Then fill the 3d orbital. After 4s, we have \(25 - 18 - 2 = 5\) electrons left for the 3d orbital: \(3d^5\).

Combining these, the electron configuration of Mn is \([Ar]4s^23d^5\).

Answer:

\([Ar]4s^23d^5\)