Question

Write the electronic configurations of the elements
with the atomic numbers 61, 91, 101, and 1​

Answer 1

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Answer 2

Atomic number = 61, Promethium

the electronic configuration is [Xe]^{54}4f^{5}5d^{0}6s^{2}

atomic number = 91, protactinium

the electronic configuration is [Rn]^{86}5f^{2}6d^{1}7s^{2}

Atomic number = 101, Mendelevium

the electronic configuration is [Rn]^{86}5f^{13}6d^{0}7s^{2}

Atomic number = 109, Meitnerium

the electronic configuration is [Rn]^{86}5f^{14}6d^{7}7s^{2}