2. Questions Bank
  3. 7th Class
  4. Science
  5. Related to Competitive Exam

7th Class Science Related to Competitive Exam Question Bank Self Test-5

  • question_answer
    In the periodic table, valance electrons are denoted by which one of the following form of numbers?

    A)  Hindu-Arabic

    B)  Roman numeral

    C)  Symbol

    D)  All of these

    E)  None of these

    Correct Answer: B

    Solution :


You need to login to perform this action.
You will be redirected in 3 sec spinner