Department of Pre-University Education, KarnatakaPUC Karnataka Science Class 12
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The Radioactive Isotope D Decays According to the Sequenceif the Mass Number and Atomic Number of D2 Are 176 and 71 Respectively, What is (I) the Mass Number (Ii) Atomic Number of D? - Physics

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Question

The radioactive isotope D decays according to the sequence

If the mass number and atomic number of D2 are 176 and 71 respectively, what is (i) the mass number (ii) atomic number of D?

Solution

An alpha (α) particle is a helium nucleus (`""_2^4He)`and a beta-minus decay (β) is an emission of an electron.

The substance D2 can be represented as `""_71^176D_2`.

Hence,

(i) The mass number of D is 180.

(ii) The atomic number of is 72.

  Is there an error in this question or solution?
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The Radioactive Isotope D Decays According to the Sequenceif the Mass Number and Atomic Number of D2 Are 176 and 71 Respectively, What is (I) the Mass Number (Ii) Atomic Number of D? Concept: Radioactivity - Law of Radioactive Decay.
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