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Structure of the Atom — Science STD 9 — Question

Gujarat BoardEnglish MediumSTD 9ScienceStructure of the Atom1 Mark
Question
Write one pair of isobars.
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Answer

isobars are the atoms of different element which have same mass number bit different atomic number. eg- $^{40}\text{Ar}_{18}$ and $^{40}\text{Ar}_{19}.$ Since isobars compounds have same mass number but different atomic number and chemical properties depend upon no. of electrons so isobars have different chemical properties.

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