Learn from the best available source for this chapter!

<span style="color: #000000;"><strong><span style=""class="fontSize14">Mass Defect &amp; Binding Energy Explained</span></strong></span>
<div><span style=" color: #000000;"class="fontSize10">You have learnt that the mass of a nucleus is less than the sum of the individual masses of the nucleons it contains. This anomaly is what we call the mass defect. But what causes this anomaly? Let us try to understand.</span></div>

Binding Energy per Nucleon

https://www.youtube.com/watch?v=HCRBPZM0O1E

<span style="color: #000000;"><strong><span style=""class="fontSize14">Alpha, Beta and Gamma Radiation</span></strong></span>
<div><span style=" color: #000000;"class="fontSize10">Radioactive elements may follow several decay schemes and they keep emitting radiations till the nucleus is stable. Let us understand the differences between the radiations emitted by these visualisations.</span></div>

Radioactivity | Alpha,beta and gamma rays | Explained | 3D animation | Uranium rays |

https://www.youtube.com/watch?v=9MbiGctI8yk

<span style="color: #000000;"><strong><span style=""class="fontSize14">Nuclear Fission</span></strong></span>
<div><span style=" color: #000000;"class="fontSize10">Elements of mass number more than 170 are considered to be unstable and are likely to undergo fission reaction. Let us understand the fission of U-235.</span></div>

Nuclear fission

https://www.youtube.com/watch?v=LhXTb_dqT6k

<span style="color: #000000;"><strong><span style=""class="fontSize14">Nuclear Fusion in the Sun</span></strong></span>
<div><span style=" color: #000000;"class="fontSize10">The energy released in the sun is due to fusion of Hydrogen to form helium. However it is a multi-step process, called the proton-proton cycle. Check out this video understand energy production in the sun in a little more detail.</span></div>

How the Sun Shines: The Nuclear Reactions that Power the Sun

https://www.youtube.com/watch?v=W8cX0YbRLFo

Nuclei