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प्रश्न
As compared to 12C atom, 14C atom has
पर्याय
two extra protons and two extra electrons
two extra protons but no extra electrons
two extra neutrons and no extra electron
two extra neutrons and two extra electron
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उत्तर
two extra neutrons and no extra electron
12C and 14C are the two isotopes of carbon atom that have same atomic number, but different mass numbers. This means that they have same number of protons and electrons, but different number of neutrons. Therefore, 12C has 6 protons, 6 electrons and 6 neutrons, whereas 14C has 6 electrons, 6 protons and 8 neutrons.
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संबंधित प्रश्न
Calculate and compare the energy released by a) fusion of 1.0 kg of hydrogen deep within Sun and b) the fission of 1.0 kg of 235U in a fission reactor.
In a typical fission reaction, the nucleus is split into two middle-weight nuclei of unequal masses. Which of the two (heavier or lighter) has greater kinetic energy? Which one has greater liner momentum?
If three helium nuclei combine to form a carbon nucleus, energy is liberated. Why can't helium nuclei combine on their own and minimise the energy?
A uranium reactor develops thermal energy at a rate of 300 MW. Calculate the amount of 235U being consumed every second. Average released per fission is 200 MeV.
A town has a population of 1 million. The average electric power needed per person is 300 W. A reactor is to be designed to supply power to this town. The efficiency with which thermal power is converted into electric power is aimed at 25%. (a) Assuming 200 MeV to thermal energy to come from each fission event on an average, find the number of events that should take place every day. (b) Assuming the fission to take place largely through 235U, at what rate will the amount of 235U decrease? Express your answer in kg per day. (c) Assuming that uranium enriched to 3% in 235U will be used, how much uranium is needed per month (30 days)?
Which particle is most likely to be captured by a 235u nucleus and cause it to undergo fission?
Distinguish between nuclear fission and fusion giving an example of each.
How long can an electric lamp of 1000 W be kept glowing by fusion of 2.0 kg of deuterium? Take the fusion reaction as:
\[{}_{1}^{2}\mathrm{H}+_{1}^{2}\mathrm{H}\rightarrow{}_{2}^{3}\mathrm{He}+\mathrm{n}+3.27\mathrm{MeV}\]
If in nuclear fusion process the masses of the fusing nuclei be m1 and m2 and the mass of the resultant nucleus be m3, then:
\[\ce{^290_80X ->[\alpha] Y ->[e+] Z ->[\beta-] P ->[e-] Q}\]
In the nuclear emission stated above, the mass number and atomic number of the product Q respectively, are:
Nuclear fission is best defined as:
Beyond natural radioactive decay, new nuclear possibilities emerge when nuclei are bombarded with particles such as:
In the fission of uranium-235, the particle that bombards the nucleus to initiate the reaction is a:
Complete the fission reaction: \[_{0}^{1}n + _{92}^{235}U \to _{92}^{236}U \to _{56}^{144}Ba + _{36}^{89}Kr + \,?\]
The disintegration energy released in a fission event first appears as:
The energy released (Q value) in the fission reaction of nuclei like uranium is of the order of:
The enormous energy released in an atom bomb comes from:
