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Answer : 2. "Elements which have different atomic numbers but same mass"
What are counterweights?
5Q:
What are counterweights?
- 1Elements which have the same atomic number but different masses.false
- 2Elements which have different atomic numbers but same masstrue
- 3Elements which have different atomic numbers and different massesfalse
- 4Elements which have the same atomic number and the same massfalse
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Answer : 2. "Elements which have different atomic numbers but same mass"
Explanation :
Isobar: Nuclei which have the same mass number (A) but a different atomic number (Z) are called isobar. Even-neutronic: Nuclei having equal number of neutrons are called even-neutronic. For them both atomic number (Z) and mass number (A) are different, but the value of (A – Z) is the same.