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Structure of the Atom — Science STD 9 — Question

Gujarat BoardEnglish MediumSTD 9ScienceStructure of the Atom2 Marks
Question
What are isobars? Give one example.
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Answer

Isobars- are atoms of different element which have same mass number but different atomic number.
For eg. $^{40}\text{Ar}_{18},\ ^{40}\text{K}_{19}$ As they have different atomic number so properties are different because no. of valence electrons will be different.

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