Сколько f-элементов в современной периодической системе?

  1. 28
  2. 14
  3. 40
  4. 36

📝 Detailed explanation

f-элементы — лантаноиды (14) и актиноиды (14): всего 14+14 = 28.
4 / 71 (6%)
Question 4 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