Число электронов у атома, ядро которого содержит 13 протонов, равно

  1. 4
  2. 13
  3. 8
  4. 12

📝 Detailed explanation

В нейтральном атоме число электронов равно числу протонов: 13 (алюминий Al).
23 / 28 (82%)
Question 23 of 28
← Previous → Next Space — Show answer

🎯 Take a test on the topic «Строение атома»

This topic contains 28 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