В ионах A²⁻, A⁴⁺, A⁶⁺ суммарно 40 электронов. Найдите заряд ядра A.

  1. 10
  2. 34
  3. 16
  4. 8

📝 Detailed explanation

(x+2)+(x−4)+(x−6)=40 → 3x = 48 → x = 16 (сера).
55 / 71 (77%)
Question 55 of 71
← Previous → Next Space — Show answer

🎯 Take a test on the topic «Периодический закон и периодическая система. Строение атома»

This topic contains 71 questions. Test your knowledge!

🔐 Log in to take the test

📚 All tests by subject «Химия»

View all collections and topics in Химия

Go to subject →

Report an error

Answers are unavailable

This test collection is closed. To get full access, please purchase 🌟 premium

Contact by email