Zirconium - 96 isotope is formed from the beta decay of zirconium-97 , Option C is the correct answer .
<h3>What are Isotopes ?</h3>
Atoms are composed of a cloud of electrons surrounding a dense nucleus that is 100,000 times smaller and comprised of protons and neutrons.
The number of protons(i.e., atomic number, "Z") determines the element.
Isotopes are atoms of the same element that have the same number of protons (i.e., atomic number, "Z") but a different number of neutrons, meaning that their mass number, "A", varies.
Naturally occurring zirconium (⁴⁰Zr) is composed of four stable isotopes
One very long-lived radio isotope (⁹⁶Zr), a primordial nuclide that decays via double beta decay with an observed half-life of 2.0×10¹⁹ years
The second most stable radioisotope is ⁹³Zr, which has a half-life of 1.53 million years.
Thirty other radioisotopes have been observed.
All have half-lives less than a day except for ⁹⁵Zr (64.02 days), ⁸⁸Zr (83.4 days), and ⁸⁹Zr (78.41 hours).
The primary decay mode is electron capture for isotopes lighter than ⁹²Zr
and the primary mode for heavier isotopes is beta decay.
Therefore Zirconium - 96 isotope is formed from the beta decay of zirconium-97 , Option C is the correct answer .
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