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Alpha.

Beta particles are blocked by a few mm of aluminum and gamma by a few cm of lead.

Alpha.

Beta particles are blocked by a few mm of aluminum and gamma by a few cm of lead.

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12y ago
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14y ago

There are no radioactive particles so weak as to be stopped by a sheet of paper.

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13y ago

An alpha particle can usually be stopped by a piece of paper.

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11y ago
  • alpha particles
  • visible light
  • etc.
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12y ago

Paper can block gamma radiation

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13y ago

Alpha particles.

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Q: Which radioactive particle can be stopped by a regular sheet of notebook paper?
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Is the alpha particle mass smaller than a neutron?

Alpha particles (helium nuclei) are much larger and heavier than beta (electrons) and gamma (high-energy photons). This means they do far more damage to anything they hit. However, it also means can't travel very far and can be stopped by as little as a sheet of paper. Radioactive isotopes that emit only alpha radiation are not very dangerous, the only danger is breathing in or ingesting the isotope.


How far do nuclear particles penetrate into human tissue?

The ability of particulate radiation to penetrate human tissue varies by particle type, and to some degree on the energy of the particle. The three basic types of particulate radiation are the alpha particle, the beta particle and the neutron. Let's look at them. The alpha particle won't penetrate very far at all. As the alpha particle is a helium-4 nucleus, it is massive, and it will be stopped by the outer most layers of the skin. As for beta particles, which are electrons or positrons, they can't go much farther. They'll be stopped before much penetration into the skin. That leaves just one other particle: the neutron. Neutrons have an extreme ability to penetrate tissue. They can do some serious damage, and we don't want to be on the receiving end of them. There are some other particle types, but they aren't generally seen outside the physics lab. These are the "big three" types of particulate radiation, you'll find links below to help you discover more.


What elements are used as a shields to protect radioactive substances?

* Alpha radiation can be stopped by a sheet of card * Beta radiation can be stopped be a few inches of aluminium * Gamma radiation can be stopped by several inches of lead or many feet of concrete.


What did the use on old watches to make them glow in the dark?

Radium was originally used but was stopped in the 1960's once it was found to be pretty unhealthy to have a radioactive isotope so close to you :)


What particle produced at sun's core will take shortest time to emerge from sun's photosphere?

The neutrino, which moves near the speed of light and will only very rarely be stopped by matter.

Related questions

The type of radioactive particle that can be stopped by a sheet of paper is the?

alpha particle


Definition for alpha?

If you are talking about the particle type 'Alpha' then here is the scientific definition: An alpha particle is one that is emitted in certain types of radioactive decay. It is positively charged and made up of two neutrons and two protons (which is a helium atom nucleus.) It is easily stopped, and cannot penetrate a piece of thick paper or the skin.


Why are radioactive elements which emit alpha particles more dangerous outside the body than inside?

It is the opposite. Radioactive elements which emit alpha particles are more dangerous inside the body than outside. Alpha particle radiation could be stopped by skin. So, is not dangerous outside the body. However, any contamination by those radioactive elements if got inside through mouth, or any other means, then the alpha particle radiation could be harmful to the very delicate inside body tissues.


Radioactive decay is the most dangerous?

There are three types: Beta decay, alpha decay, and gamma decay/gamma rays. They are all dangerous if exposed to a high amount of radioactive matter. When the radioactive isotope undergoes beta, alpha, and gamma decay, there is an emission of a beta particle, alpha particle, and gamma ray (respectively). In highly radioactive matter, there are often trillions of radioactive isotopes that emit these particles and/or rays - and they are very high-energy once emitted. However, they are only dangerous when exposed to a high amount.


How can cocaine smuggling be stopped?

Cocaine smuggling can be stopped by regular border patrols or by more security precautions in airports such as sniffer dogs. Alternatively and controversially the smuggling can be stopped by legalizing the drug cocaine.


The type of radioactive particle that can be stopped by a sheet of paper is the what?

There are different kinds of radiation and different kinds of paper. For the electromagnetic radiation, every material has "transparency windows". Sunlight is the electromagnetic radiation, too. As you can tell, some paper is transparent to it and some not. If we consider the particles radiation, then the particles nature and energy play major roles. Some heavy particles with low energy can be scattered by even relatively light obstacles. Whereas such particles as neutrino easily go through the entire Earth. alpha particles can be stopped by thin objects such as paper. beta particles can be stopped by thicker objects suck as plastic or aluminum foil gamma radiation can be stopped by several feet thick of concrete and/or lead


Is the alpha particle mass smaller than a neutron?

Alpha particles (helium nuclei) are much larger and heavier than beta (electrons) and gamma (high-energy photons). This means they do far more damage to anything they hit. However, it also means can't travel very far and can be stopped by as little as a sheet of paper. Radioactive isotopes that emit only alpha radiation are not very dangerous, the only danger is breathing in or ingesting the isotope.


How far do nuclear particles penetrate into human tissue?

The ability of particulate radiation to penetrate human tissue varies by particle type, and to some degree on the energy of the particle. The three basic types of particulate radiation are the alpha particle, the beta particle and the neutron. Let's look at them. The alpha particle won't penetrate very far at all. As the alpha particle is a helium-4 nucleus, it is massive, and it will be stopped by the outer most layers of the skin. As for beta particles, which are electrons or positrons, they can't go much farther. They'll be stopped before much penetration into the skin. That leaves just one other particle: the neutron. Neutrons have an extreme ability to penetrate tissue. They can do some serious damage, and we don't want to be on the receiving end of them. There are some other particle types, but they aren't generally seen outside the physics lab. These are the "big three" types of particulate radiation, you'll find links below to help you discover more.


How far will the gamma particle penetrate in the human body?

Alpha radiation consists of helium nucleus that are (in this context) rather large. This means it is very easily stopped (just a few tens of cm of air will stop it) and when encountering more solid matter, i.e. the skin, its stopped almost immediately. So, alpha radiation (as long as you dont eat some any redioactive material) is pretty harmless.


How many books did Laura ingalls ever write?

Laura wrote eight and started on a ninth, but stopped writing it after her husband died. Her unpublished version, written on a notebook, was published after her death.


Where would be the best location for a radioactive waste storage facility?

It depends. Radioactive Waste emitting Alpha particles could be stored in drums within a secure area, since Alpha particles can be stopped by a sheet of paper. Radioactive Waste emitting Beta particles can also be stored in drums within a secure area, since Beta particles can be stopped by a sheet of tin. Radioactive Waste particles emitting Gamma rays require many feet of dense lead in order to stop the radiation. These wastes are generally stored within secure areas underground, or remote areas away from highly populated areas.


What elements are used as a shields to protect radioactive substances?

* Alpha radiation can be stopped by a sheet of card * Beta radiation can be stopped be a few inches of aluminium * Gamma radiation can be stopped by several inches of lead or many feet of concrete.