Определите Y по таблице: XO₂ содержит 30 протонов; XF₄ содержит Y протонов.

  1. 50
  2. 40
  3. 60
  4. 30

📝 Detailed explanation

p(X) = 30 − 16 = 14 → Si. p(SiF₄) = 14 + 4·9 = 50.
54 / 71 (76%)
Question 54 of 71
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