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Question: 4th period elements each 10 list of elements and with electronic configuration...

4th period elements each 10 list of elements and with electronic configuration

Answer

The 10 elements are Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, and Zn with the electron configurations provided above.

Explanation

Solution

Solution:

For the 4th period, the 3d transition series comprises 10 elements (the d-subshell with 5 orbitals accommodates 10 electrons). These elements and their electronic configurations are:

  1. Scandium (Sc, Z = 21):

    [Ar] 3d¹ 4s²

  2. Titanium (Ti, Z = 22):

    [Ar] 3d² 4s²

  3. Vanadium (V, Z = 23):

    [Ar] 3d³ 4s²

  4. Chromium (Cr, Z = 24):

    [Ar] 3d⁵ 4s¹

  5. Manganese (Mn, Z = 25):

    [Ar] 3d⁵ 4s²

  6. Iron (Fe, Z = 26):

    [Ar] 3d⁶ 4s²

  7. Cobalt (Co, Z = 27):

    [Ar] 3d⁷ 4s²

  8. Nickel (Ni, Z = 28):

    [Ar] 3d⁸ 4s²

  9. Copper (Cu, Z = 29):

    [Ar] 3d¹⁰ 4s¹

  10. Zinc (Zn, Z = 30):

    [Ar] 3d¹⁰ 4s²

Minimal Explanation:

The 4th period's d-block elements are the 3d series (Sc to Zn), consisting of 10 elements. Their configurations follow the [Ar] core, with electrons filling 3d and 4s orbitals (noting the special half-filled and fully-filled exceptions for Cr and Cu).