Вычислите сумму всех квантовых чисел неспаренных электронов родия.

  1. 22,5
  2. 21,5
  3. 32
  4. 33,5

📝 Detailed explanation

Rh (Z=45): [Kr]4d⁸5s¹. Неспаренные: 5s¹ (n=5,l=0,m=0,s=+½) и два 4d (m=+1, m=+2 при s=+½). Сумма: (5+0+0+½)+(4+2+1+½)+(4+2+2+½)=5,5+7,5+8,5=21,5.
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