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Direction: In the following table the mass number and the atomic number of certain elements are given. Study the given data and answer the following questions :
Q. Which element is a noble gas?
  • a)
    B
  • b)
    D
  • c)
    E
  • d)
    A
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
Direction: In the following table the mass number and the atomic numb...
The atomic number of element D is 18. So, it’s electronic configuration will be 2, 8, 8. The outermost shell is complete, so, it is a noble gas.
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Direction: In the following table the mass number and the atomic number of certain elements are given. Study the given data and answer the following questions :Q. Which element is a noble gas?a)Bb)Dc)Ed)ACorrect answer is option 'B'. Can you explain this answer?
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Direction: In the following table the mass number and the atomic number of certain elements are given. Study the given data and answer the following questions :Q. Which element is a noble gas?a)Bb)Dc)Ed)ACorrect answer is option 'B'. Can you explain this answer? for Class 9 2024 is part of Class 9 preparation. The Question and answers have been prepared according to the Class 9 exam syllabus. Information about Direction: In the following table the mass number and the atomic number of certain elements are given. Study the given data and answer the following questions :Q. Which element is a noble gas?a)Bb)Dc)Ed)ACorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 9 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Direction: In the following table the mass number and the atomic number of certain elements are given. Study the given data and answer the following questions :Q. Which element is a noble gas?a)Bb)Dc)Ed)ACorrect answer is option 'B'. Can you explain this answer?.
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