Question:
The element having [Ar]$3d^{10}4s^1$ electronic configuration is
The element having [Ar]$3d^{10}4s^1$ electronic configuration is
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When analyzing electronic configurations, remember that transition elements may have partially filled 3d subshells and are often confused with each other due to their similar configurations.
Updated On: Jun 18, 2025
- Cu
- Zn
- Cr
- Mn
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The Correct Option is A
Solution and Explanation
The electronic configuration [Ar]$3d^{10}4s^1$ corresponds to Copper (Cu), which has atomic number 29.
In this configuration, the 3d subshell is completely filled and there is one electron in the 4s orbital.
Other elements like Zn, Cr, and Mn do not match this configuration. Zn has a fully filled 4s subshell and a partially filled 3d subshell, while Cr and Mn have different electronic configurations.
In this configuration, the 3d subshell is completely filled and there is one electron in the 4s orbital.
Other elements like Zn, Cr, and Mn do not match this configuration. Zn has a fully filled 4s subshell and a partially filled 3d subshell, while Cr and Mn have different electronic configurations.
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