Isotopes, isobars and isotones: Drag and drop — task. Science State Board, Class 9.

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Answer variants:

Isotone

Isotope

Isobar

{}_{18}^{40}{Ar}, {}_{20}^{40}{Ca}

{}_{17}^{35}{Cl}, {}_{17}^{37}H

{}_{7}^{15}N, {}_{8}^{16}O

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12. Isotopes, isobars and isotones: Drag and drop