Question

13. किसी तत्त्व के समस्थानिकों को आवर्त सारणी के एक ही स्थान
में क्यों रखा गया है?
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Answer 1

Answer:

We know that elements in the modern periodic table are arranged on the basis of their atomic number. The isotopes of a same element have same atomic number though their mass number is different. Hence they are placed at one place in the same group of the modern periodic table.

Step-by-step explanation:

Answer 2

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