Кто из этих элементов НЕ бывает двухвалентным?

  1. Cu
  2. Ag
  3. Au
  4. Hg
39 / 50 (78%)
Question 39 of 50
← Previous → Next Space — Show answer

🎯 Take a test on the topic «Валентность и аллотропия»

This topic contains 50 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