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What is the atomic number of element of period 3 and group 17 of the Periodic Table? -

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प्रश्न

What is the atomic number of elements of period 3 and group 17 of the Periodic Table?

पर्याय

  • 10

  • 4

  • 17

  • 21

MCQ

उत्तर

17

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History of Periodic Table: Early Attempts at the Classification of Elements
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