[" 6.Which of the given elements "A,B,C,...

[" 6.Which of the given elements "A,B,C,D" and "E" with atomic number "],[2,3,7,10" and "30" respectively belong to the same period? "],[" (a) "A,B,C],[" (b) "B,C,D],[" (c) "A,D,E],[" (d) "B,D,E]

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[" 6.Which of the given elements "A,B,C,D" and "E" with atomic number "],[2,3,7,10" and "30" respectively belong to the same period? "],[" (a) "A,B,C],[" (b) "B,C,D],[" (c) "A,D,E],[" (d) "B,D,E]

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