General Knowledge - Chemistry - Discussion
Discussion Forum : Chemistry - Section 1 (Q.No. 5)
5.
The number of d-electrons in Fe2+ (Z = 26) is not equal to that of
Discussion:
31 comments Page 4 of 4.
Clevein said:
2 years ago
The electron configurations are as follows:
1. **Fe²⁺ (Z = 26):** [Ar] 3d⁶.
=> The number of d-electrons is 6.
2. **Ne (Z = 10):** 1s² 2s² 2p⁶
=> There are no p-electrons in Ne.
3. **Mg (Z = 12):** 1s² 2s² 2p⁶ 3s²
=> The number of s-electrons is 2.
4. **Fe (Z = 26):** [Ar] 4s² 3d⁶
=> The number of d-electrons is 6.
5. **Cl (Z = 17):** 1s² 2s² 2p⁶ 3s² 3p⁵
=> The number of p-electrons is 5.
In summary:
- The number of d-electrons in Fe²⁺ (Z = 26) is **6**.
- The number of p-electrons in Ne (Z = 10) is **0**.
- The number of s-electrons in Mg (Z = 12) is **2**.
- The number of d-electrons in Fe (Z = 26) is **6**.
- The number of p-electrons in Cl (Z = 17) is **5**.
Therefore, the statement is correct.
The number of d-electrons in Fe²⁺ is not equal to the specified electron counts in Ne, Mg, Fe, and Cl.
1. **Fe²⁺ (Z = 26):** [Ar] 3d⁶.
=> The number of d-electrons is 6.
2. **Ne (Z = 10):** 1s² 2s² 2p⁶
=> There are no p-electrons in Ne.
3. **Mg (Z = 12):** 1s² 2s² 2p⁶ 3s²
=> The number of s-electrons is 2.
4. **Fe (Z = 26):** [Ar] 4s² 3d⁶
=> The number of d-electrons is 6.
5. **Cl (Z = 17):** 1s² 2s² 2p⁶ 3s² 3p⁵
=> The number of p-electrons is 5.
In summary:
- The number of d-electrons in Fe²⁺ (Z = 26) is **6**.
- The number of p-electrons in Ne (Z = 10) is **0**.
- The number of s-electrons in Mg (Z = 12) is **2**.
- The number of d-electrons in Fe (Z = 26) is **6**.
- The number of p-electrons in Cl (Z = 17) is **5**.
Therefore, the statement is correct.
The number of d-electrons in Fe²⁺ is not equal to the specified electron counts in Ne, Mg, Fe, and Cl.
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