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The number of beta particles emitted by a radioactive substance is twice the number of alpha particles emitted by it. The resulting daughter is an:
- a)isomer of parent
- b)isotone of parent
- c)isotope of parent
- d)isobar of parent
Correct answer is option 'C'. Can you explain this answer?
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The number of beta particles emitted by a radioactive substance is twi...
Explanation:
Radioactive decay can involve the emission of alpha particles or beta particles. An alpha particle is a helium nucleus, consisting of two protons and two neutrons. A beta particle can be an electron or a positron.
Given that the number of beta particles emitted by a radioactive substance is twice the number of alpha particles emitted by it, we can infer that:
- The decay involves both alpha and beta particles.
- The ratio of beta to alpha particles is 2:1.
The resulting daughter nucleus must have:
- Two fewer protons and two fewer neutrons than the parent nucleus, due to the emission of an alpha particle.
- One more proton or one more neutron than the parent nucleus, due to the emission of a beta particle.
Therefore, the daughter nucleus must be an isotope of the parent nucleus, with a different number of protons or neutrons. This rules out options A and D.
An isotone is a nucleus with the same number of neutrons but a different number of protons. Since we know that the daughter nucleus has a different number of neutrons and protons than the parent nucleus, it cannot be an isotone. This rules out option B.
Therefore, the correct answer is option C: the resulting daughter is an isotope of the parent.
Radioactive decay can involve the emission of alpha particles or beta particles. An alpha particle is a helium nucleus, consisting of two protons and two neutrons. A beta particle can be an electron or a positron.
Given that the number of beta particles emitted by a radioactive substance is twice the number of alpha particles emitted by it, we can infer that:
- The decay involves both alpha and beta particles.
- The ratio of beta to alpha particles is 2:1.
The resulting daughter nucleus must have:
- Two fewer protons and two fewer neutrons than the parent nucleus, due to the emission of an alpha particle.
- One more proton or one more neutron than the parent nucleus, due to the emission of a beta particle.
Therefore, the daughter nucleus must be an isotope of the parent nucleus, with a different number of protons or neutrons. This rules out options A and D.
An isotone is a nucleus with the same number of neutrons but a different number of protons. Since we know that the daughter nucleus has a different number of neutrons and protons than the parent nucleus, it cannot be an isotone. This rules out option B.
Therefore, the correct answer is option C: the resulting daughter is an isotope of the parent.
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The number of beta particles emitted by a radioactive substance is twi...
Consider in beta decay atomic number increases by 1 n in alpha decay atomic no. n mass no.decreases by 2 n 4 rep. given beta particles emitted is twice the no.of alpha ..due to 2 beta emission atomic no.increase by 2 n due to 1 alpha decay atomic no.decreases by 2..both get cancel n only mass no increases due to alpha emission and it will isotope of parent( same atomic no.with diferent masses)?
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The number of beta particles emitted by a radioactive substance is twice the number of alpha particles emitted by it. The resulting daughter is an:a)isomer of parentb)isotone of parentc)isotope of parentd)isobar of parentCorrect answer is option 'C'. Can you explain this answer?
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