shaalaa.com | Composition and size of nucleus
- Composition and Size of Nucleus
Show that the density of nucleus over a wide range of nuclei is constant-independent of mass number A.
Find the Q-value and the kinetic energy of the emitted α-particle in the α-decay of
a) `""_88^226 Ra` and b) `""_86^220Rn`
Given `m(""_88^226Ra)` = 226.02540 u, `m(""_86^222 Rn)` = 222.01750 u,
`m(""_86^220 Rn)`= 220.01137 u, `m(""_84^216 Po)`= 216.00189 u.
In the study of Geiger-Marsdon experiment on scattering of α particles by a thin foil of gold, draw the trajectory of α-particles in the coulomb field of target nucleus. Explain briefly how one gets the information on the size of the nucleus from this study.
From the relation R = R0 A1/3, where R0 is constant and A is the mass number of the nucleus, show that nuclear matter density is independent of A
Two stable isotopes of lithium `""_3^6Li` and `""_3^7Li` `have respective abundances of 7.5% and 92.5%. These isotopes have masses 6.01512 u and 7.01600 u, respectively. Find the atomic mass of lithium.
Boron has two stable isotopes, `""_5^10B` and Their respective masses are 10.01294 u and 11.00931 u, and the atomic mass of boron is 10.811 u. Find the abundances of `""_5^10B` and `""_5^11B`.
The three stable isotopes of neon: `""_10^20Ne`and `""_10^22 Ne`have respective abundances of 90.51%, 0.27% and 9.22%. The atomic masses of the three isotopes are 19.99 u, 20.99 u and 21.99 u, respectively. Obtain the average atomic mass of neon
Question Papers For All Subjects
- English Elective - NCERT 2007 to 2018
- English Core 2005 to 2018
- Hindi (Core) 2007 to 2018
- Hindi (Elective) 2007 to 2018
- Mathematics 2005 to 2018
- Physics 2005 to 2018
- Chemistry 2005 to 2018
- Biology 2005 to 2018
- Computer Science (Python) 2006 to 2018
- English Elective - CBSE (Functional English) 2007 to 2018