Question

35. Which of the following does not match the characteristics of an Isotope?
(1 Point)
(a) isotopes of some elements are radioactive
by isotopes are the atoms of different elements
to sotopes differ in number of neutrons
isotopes have similar chemical properties.​

Answer 1

Isotopes of an element have same the atomic number but different mass numbers.

Now, atomic number of an element = number of protons = number of electrons

• Therefore, the electronic configuration is the same for isotopes and as the chemical properties depend upon the electronic configuration, latter is also the same.