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In the outer orbitals of Pt (Period VI, 5d-blocktransition elements, after the 4f-block-lanthanides) there are two unpaired electrons:

  1. the first is the odd one in 4f17 (or maybe by exchange with 5d10>9)
  2. and the other one is the odd one in 6s1
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13y ago
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13y ago

Phosphorous is [Ne]3s23p3. The 3s electrons are spin paired, but the 3p electrons are not. There are thus 3 unpaired electrons in phosphorous.

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13y ago

it has 78 neutrons and protons.

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Q: How many unpaired electron the Pt atom has?
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