Определите число валентных электронов в ионе S⁴⁺.

  1. 3
  2. 4
  3. 2
  4. 5

📝 Detailed explanation

S: [Ne]3s²3p⁴. S⁴⁺: 3s²3p⁰ — 2 валентных электрона.
24 / 71 (34%)
Question 24 of 71
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