Physics
The graph illustrates the correlation between the number of protons (x-axis) and the number of neutrons (y-axis) for element C in the periodic table. The element is denoted by letters rather than their conventional symbols. When element C, depicted in the graph, undergoes radioactive decay, it releases radioactive rays.
(a) Write the chemical symbol along with the mass number and atomic number for the element denoted as ‘C’.
(b) Plot on the graph,
i. The daughter element after the emission of beta radiation by the element ‘C’.
ii. The daughter element, as indicated in the previous answer, if it undergoes alpha decay.
Radioactivity
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Answer
(a)
(b)
(i)
Here,
No. of protons of daughter element = atomic number = 93
No. of neutrons of daughter element = mass number - atomic number = 238 - 93 = 145
(ii)
Here,
No. of protons of daughter element = atomic number = 91
No. of neutrons of daughter element = mass number - atomic number = 234 - 91 = 143
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