4 × 10 23 tritium atoms are contained in a vessel. The half-life of decay of tritium nuclei is 12.3 y. Find (a) the activity of the sample, (b) the number of decays in the next 10 hours (c) the number of decays in the next 6.15 y.

Question

Philoid · Accepted Answer

Given, t_1/2 = 12.3 y

(a) Activity

(b)

∴

= 2.57 10¹⁹ atoms will decay in next 10 hours.

(c) No. of atoms initially,

atoms remained

So, No. of atoms decayed

4 × 1023 tritium atoms are contained in a vessel. The half-life of decay of tritium nuclei is 12.3 y. Find(a) the activity of the sample,(b) the number of decays in the next 10 hours(c) the number of decays in the next 6.15 y.

4 × 10²³ tritium atoms are contained in a vessel. The half-life of decay of tritium nuclei is 12.3 y. Find
(a) the activity of the sample,

(b) the number of decays in the next 10 hours

(c) the number of decays in the next 6.15 y.