Question

There are two atomic species X and Y, such that
MCQ Questions for Class 9 Science Chapter 4 Structure of the Atom with Answers
Which of the following statements is true about X and Y?
(a) X and Y are isobars.
(b) X and Y have different chemical properties.
(c) X and Y have different physical properties.
(d) All of these.
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Answer 1

Answer: (c) X and Y have different physical properties.

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