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वह तत्व जिसका परमाणु क्रमाक तथा परमाणु भार दोनो एक-समान होता है?

Asked Sep 26, 2023 Modified Sep 26, 2023 Viewed 0 times

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Science

asked Sep 26, 2023 at 18:40

A

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हाइड्रोजन

answered Sep 26, 2023 at 18:40

A

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