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An atom has electronic configuration 2, ...

An atom has electronic configuration 2, 8, 7.
What is the atomic number of this element?

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The atomic number of the element is `17(2+8+7=17)`.
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MTG IIT JEE FOUNDATION-PERIODIC CLASSIFICATION OF ELEMENTS-NCERT Section
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  4. which element has two shells, both of which are completely filled wi...

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  5. which element has the electronic configuration 2, 8, 2?

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  6. which element has a total of three shells, with four electrons in it...

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  7. which element has a total of two shells, with three electrons in its...

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  8. which element has Twice as many electrons in its second shell as in ...

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  9. What property do all elements in the same column of the periodic table...

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  10. What property do all elements in the same column of the periodic table...

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  11. An atom has electronic configuration 2, 8, 7. What is the atomic num...

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  12. An atom has electronic configuration 2, 8, 7. To which of the follow...

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  14. The positions of three elements A, B and C in the periodic table are s...

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  15. The positions of three elements A, B and C in the periodic table are s...

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  16. The positions of three elements A, B and C in the periodic table are s...

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