Question

(i) What do you understand by the term isotopes?
(ii) Why do isotopes of an element possess identical chemical properties?
(iii) Name the isotope of hydrogen which does not have a neutron in it.

Answer 1

Explanation:

i)the phenomenon in which the atomic NoS are same but the atomic masses is called isotopes

Answer 2

Isotopes

Explanation:

(i) Isotopes are two or more forms of the same element that contain the same number of protons but different numbers of neutrons in their nuclei. So, they have different atomic mass.

(ii) Isotopes are atoms of the same element having different atomic mass, so they possess identical chemical properties.

(iii) The three isotopes of hydrogen are protium, deuterium and tritium. The first two of these are stable. Protium has no neutron. Deuterium has one neutron, and tritium has 2 neutrons. Tritium has a half-life of 12.32 years, while the other two are stable isotopes.