Question

Substances having similar chemical properties but different physical properties are called *
isobars
atomic number
isotopes
mass number​

Answer 1

Answer:

Isotopes have same chemical properties, but their physical properties might be different. Chemical properties of an element depend on its atomic number or number of protons. Isotopes of an element have the same atomic number, hence their chemical properties are the same. But their physical properties may be different.

Answer 2

Isobars.

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