Question

which of these belong to the same period?Element A, B, C;Atomic number:-2,10,5:-(1)A,B;(2)B,C;(3)C,A;(4)A,B and C​

Answer 1

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${\large{\green{\boxed{\bold{2)\:B,\:C.}}}}}$

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Answer 2

Answer:

answer

B.). B,C

Explanation:

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