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After reading 1917 websites, we found 10 different results for "What is alpha particle"
positively charged particle that consists of 2 protons and 2 neutrons bound together
In physics, an alpha particle is a positively charged particle that consists of 2 protons and 2 neutrons bound together, which 2 neutrons could be argued represent the 4 boys.
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tiny, positively charged particles that are spontaneously emitted by certain substances such as uranium and radium
Alpha particles are tiny, positively charged particles that are spontaneously emitted by certain substances such as uranium and radium.
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alpha particles, two protons plus two neutrons (
There were composites of elementary particles—deuterons, a proton plus a neutron (the deuteron is a special part of the story told in this book because it is the nucleus of the heavy hydrogen atom, deuterium), and alpha particles, two protons plus two neutrons (the nucleus of the helium atom is an alpha particle).
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helium nucleuses and neutrons
For instance, beta particles are electrons, alpha particles are helium nucleuses and neutrons are uncharged particles.
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a form of ionizing radiation
Alpha particles are a form of ionizing radiation, because they have the ability to steal electrons from their surroundings, and in doing so transforming the atoms they steal from into ions themselves.
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a helium nucleus - one of the products of a nuclear fission
The alpha particle is a helium nucleus - one of the products of a nuclear fission.
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low-penetrating types of radiation
Alpha particles are low-penetrating types of radiation, and generally will not penetrate your skin and probably in all likelyhood, won’t penetrate your clothing.
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a helium atom without a helium atom's electrons
In 1907 British physicist Ernest Rutherford's research showed that the alpha particle is a helium atom without a helium atom's electrons.
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The nucleus of a helium-4 atom
The nucleus of a helium-4 atom is known as an alpha-particle.
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as an identical to a helium nucleus
The alpha particle is expressed as an identical to a helium nucleus.
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