Answer:
noun: isotopes
each of two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei, and hence differ in relative atomic mass but not in chemical properties; in particular, a radioactive form of an element.
isotone, any of two or more species of atoms or nuclei that have the same number of neutrons. Thus, chlorine-37 and potassium-39 are isotones, because the nucleus of this species of chlorine consists of 17 protons and 20 neutrons, whereas the nucleus of this species of potassium contains 19 protons and 20 neutrons.
Answer:
Isotopes are elements with same atomic number and different atomic mass number. Isotones are elements with same number of neutrons but different number of protons. The word 'iso' means 'same'.
Explanation:
The nuclei which have an identical number of nucleons, but different numbers of protons and different numbers of neutrons are called isobars. The nuclei having identical numbers of neutrons are called isotones.
