Atoms and Nuclei Conclusion
Conclusion - Rutherford's alpha particle scattering experiment explained the structure of atom and the size of nucleus. The Bohr's model explained the hydrogen spectrum. Radioactivity occurs due to nuclei being unstable resulting in the emission of three types of radiations havi..
Isobars
Isotopes are chemically same and physically different. But the converse is true in isobars. That is isobars are elements, which are chemically different but physically same. So, isobars are atoms of different elements having the same atomic mass but different atomic number. Since their number of e..
Isotopes are chemically same and physically different. But the converse is true in isobars. That is isobars are elements, which are chemically different but physically same. So, isobars are atoms of different elements having the same atomic mass but different atomic number. Since their number of e..Conclusion
Rutherford's alpha particle scattering experiment explained the structure of atom and the size of nucleus. The Bohr's model explained the hydrogen spectrum. Radioactivity occurs due to nuclei being unstable resulting in the emission of three types of radiations having different ..
Nuclear Fission
Neutrons are considered as the best projectile particles to hit the target (uranium) nucleus. The uranium may absorb these neutrons and become 9 2 U 2 3 6 which later splits into two smaller nuclei. In addition two neutrons are released and energy is also released. This process is..
Neutrons are considered as the best projectile particles to hit the target (uranium) nucleus. The uranium may absorb these neutrons and become 9 2 U 2 3 6 which later splits into two smaller nuclei. In addition two neutrons are released and energy is also released. This process is..Nuclear Stability and Neutron/Proton Ratio
. Thus stable nuclei (non-radioactive) have n/p ratio between 1 - 1.6. These lie in the shaded region of the plot which is also called stability belt or stability zone. The elements whose nuclei do not fall within the stability zone are said to be unstable. The un..
. Thus stable nuclei (non-radioactive) have n/p ratio between 1 - 1.6. These lie in the shaded region of the plot which is also called stability belt or stability zone. The elements whose nuclei do not fall within the stability zone are said to be unstable. The un..Radioactivity
It is a spontaneous emission or disintegration of an unstable nucleus resulting in certain radiations. The elements exhibiting this phenomena are called radioactive elements. e.g., radium, thorium, actinium, polonium etc. Radioactivity does not occur due to any external provocation and is..
It is a spontaneous emission or disintegration of an unstable nucleus resulting in certain radiations. The elements exhibiting this phenomena are called radioactive elements. e.g., radium, thorium, actinium, polonium etc. Radioactivity does not occur due to any external provocation and is..Summary
Radioactivity Spontaneous emission of active rays by certain unstable elements. Three types of radiations are: (i) Alpha particles He 2 + ion (Helium nuclei). (ii) Beta - rays - consist of electrons. (iii) Gamma - rays - High energy electromagnetic rays. Emission of ..
Nuclear Fission
Radioactive elements can undergo a number of different reactions in the process of forming a stable element. Nuclear fission is one such reaction. Fission means to divide. Elements having atomic numbers greater than 90 can undergo fission. Uranium is one such element. In nuclear fission, the nucle..
Radioactive elements can undergo a number of different reactions in the process of forming a stable element. Nuclear fission is one such reaction. Fission means to divide. Elements having atomic numbers greater than 90 can undergo fission. Uranium is one such element. In nuclear fission, the nucle..Nuclear Reactions
. U 2 3 6 is formed which being unstable, further breaks up in several different way..
. U 2 3 6 is formed which being unstable, further breaks up in several different way..See what our Users say :
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