Question

what are isotopes? give an example.why do isotopes of an elements have similar properties?
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Answer 1

isotopes are the atoms of the same element but they have different mass no ( due to difference in no of neutrons) and because of this they have different properties too

For eg protinium duitirium and tritinium are the isotopes of hydrogen which have 1 2 3 at masses respectively having 0 1 2 neutrons

Answer 2

Isotopes are variants of a particular chemical element which differ in neutron number, and consequently in nucleon number. All isotopes of a given element have the same number of protons but different numbers of neutrons in each atom.

Same Atomic number differentiation mass number

Since number of protons are same they have similar properties.

examples

Carbon 12 and Carbon 14 are both isotopes of carbon, one with 6 neutrons and one with 8 neutrons (both with 6 protons). Carbon-12 is a stable isotope, while carbon-14 is a radioactive isotope (radioisotope).

Uranium-235 and uranium-238 occur naturally in the Earth's crust. Both have long half-lives. Uranium-234 forms as a decay product.

Hydrogen has isotopes named

Protium, deuterium, tritium.