Nuclear Fusion & Fission Nuclear Fusion Fusion is defined as: The fusing together of two small nuclei to produce a larger nucleus Low mass nuclei (such as hydrogen and helium) can underg...
Mass Difference & Binding Energy Experiments into nuclear structure have found that the total mass of a nucleus is?less?than the sum of the masses of its constituent nucleons This differ...
Energy & Mass Equivalence Einstein showed in his?theory of relativity?that matter can be considered a form of energy and hence, he proposed: Mass can be converted into energy Energy can ...
Constant Density of Nuclear Material Assuming that the nucleus is spherical, its volume is equal to: Where?R?is the nuclear radius, which is related to mass number,?A, by the equation: Where...
最近，非常多同學(xué)學(xué)習(xí)Alevel生物。而生物作為一個(gè)探究人生奧秘的熱門(mén)學(xué)科，卻似乎因?yàn)閷?zhuān)業(yè)性強(qiáng)，門(mén)檻高將同學(xué)們拒之于外。相信同學(xué)們都幻想過(guò)，忽然有一天學(xué)習(xí)生物變得有趣又令人著迷，再也不會(huì)枯燥了。這種想法...
Nuclear Radius Values The radius of some nuclei are shown in the table below: In general, nuclear radii are of the order 10–15?m or 1 fm The nuclear radius,?R, varies with nucleon number,?A?...
Closest Approach Estimate The Coulomb equation can be used to give an estimate for the radius of a nucleus When the alpha particle reaches its closest approach (to the nucleus), all of its k...
Estimating Nuclear Radius Closest Approach Method In the Rutherford scattering experiment, alpha particles are fired at a thin gold foil Some of the alpha particles are found to come straigh...
Nuclear Excited States In the same way that electrons can exist in excited states, nuclei can also exist in?excited states After an unstable nucleus emits an alpha particle, beta particle or...
