how many times the alpha particles is more massive than electron a 9332 b 8332 c 7332 d ,6332
Answers
Answer:
around 8000 times
Explanation:
because alpha particle is equal to helium nucleus it contains two proton and two neutrons and have charge +2
Answer:
7294
Explanation:
In order for us to compare the masses of alpha particles and electrons, we would obviously require their respective masses. You may recall that the mass of the electron is 9.11×10−31kg. Now for the case of an alpha particle, if you are thinking of adding the masses of two neutrons and two protons together to determine the mass of the alpha particle, it is quite impossible. It is true that each alpha particle contains two protons and two neutrons but the sum of their masses doesn’t take the binding energy into account, thus we will end up in the wrong value. So, while calculating we could use 6.645×10−27kg as the mass of the alpha particle.
Now we could take the ratio of masses of electron and alpha particle,
Mα=6.645×10−27
Me= 9.11×10−31
⇒Mα/Me=7294
∴Mα=7294Me
Therefore, we found that the alpha particle is 7294 times more massive than an electron.