8.44 Write the electronic configurations of the elements with the atomic numbers 61, 91, 101, and 109.

<p><strong>8.44&nbsp;</strong>Promethium (Pm) has atomic number 61. Hence electronic configuration of Promethium is [Xe]⁵⁴4f⁵ 5d⁰ 6s²</p><p>Protactium (Pa) has atomic number 91. Hence electronic configuration of Protactium is [Rn]⁸⁶ 5f² 6d¹ 7s²</p><p>Mendelevium (Md) has atomic number 101. Hence electronic configuration of Mendelevium is [Rn]⁸⁶ 5f¹⁴ 6d⁰ 7s²</p><p>Meitnerium (Mt) has atomic number 109. Hence electronic configuration of Meitnerium is [Rn]⁸⁶ 5f¹⁴ 6d⁷ 7s²</p>

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