Question

explain radioisotopes

Answer 1

An atomic species is defined by two whole numbers: the number of protons in the nucleus (known as Z, or atomic number) and the total number of protons plus neutrons (known as Z, or mass number).

Isotopes are the atoms in an element that have the same atomic number but a different atomic mass; that is, the same number of protons and thus identical chemical properties, but different numbers of neutrons and consequently different physical properties. Isotopes can be stable or unstable or radioisotopes. In the latter, their nuclei have a special property: they emit energy in the form of ionizing radiation while searching for a more stable configuration.

Answer 2

Hii
An atomic species is defined by 2 whole no. -
1)Atomic no.(Z)
2)Mass no.(A)
Isotopes are the atom of an element having same atomic number but have different atomic mass
1)Same no. of protons so identical chemical properties but
2)Different no. of neutrons so having different physical properties.
Isotope can be stable or unstable or radioisotopes.
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