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kati45 [8]
3 years ago
10

A scientist has two radioactive substances. One emits beta particles, and the other emits alpha particles. He thinks that since

the alpha particles are larger, they are more dangerous to humans. What is wrong with his reasoning?
Physics
2 answers:
Alla [95]3 years ago
7 0

Answer:

As we know that the penetration of the particles depends on the energy of the particles that they have in it.

Now if the particles penetrate more then it will have more energy in it

So we can say that out of all radioactive particles maximum penetration is for gamma rays and least penetration is for alpha particles.

So here maximum energy is for gamma rays and minimum energy is for alpha particles.

So size is not the criteria to decide the energy of the particles but the penetration capacity is the right criteria to decide this.

So out of alpha and beta particles the beta particles are more dangerous than alpha particles.

aalyn [17]3 years ago
6 0
Alpha particles cannot penetrate skin, it is too large to do so. Beta particles can penetrate skin and cause more disturbance
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It is said that the negative charge moves because the electrons in the atoms of any object are taken or given to the atoms of another object.

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The atom is made up of protons, electrons and neutrons. The number of protons is exactly the same to the number of electrons for a certain element. For example, hydrogen: it has a proton, and therefore, an electron.

The electron has a negative charge. The proton has a positive charge. And the neutron has no charge, so it is neutral. While the atom has the same number of protons and electrons, it will not be electrically charged.

An example of how a charge exchange occurs between two objects is through the case of rubbing. This makes the atoms of the two objects close enough that there is an electron transfer, causing any of the objects to gain or lose electrons as a consequence of each other interaction. In the case of transferring electrons, the atom will have a greater number of protons, so it will be positively charged. When the atom receive electrons, it will have a greater number of electrons, so it will be negatively charged.

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This delay affect conversations in the sense that recipient will be receive the message just 2.56 seconds after the message was sent.

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