0
An particle of alpha-radiation consists of two protons and two neutrons. It is a highly charged particle and is thus highly ionising. It is therefore highly dangerous. Because of its size, it penetrates very little, being stopped even by a thin sheet of paper.
The other forms of radiation are beta-radiation and gamma-radiation. Beta-radiation consists of a high-speed electron, whereas gamma-radiation is a high-energy electromagnetic wave.
What else can I help you with?
What is an alpha particles atomic mass?
An alpha particle consists of two protons and two neutrons, making it equivalent to a helium-4 nucleus. Its atomic mass is approximately 4 atomic mass units (amu) or 4 grams per mole. This value is derived from the combined mass of its constituent nucleons, which are the protons and neutrons that make up the particle.
What wavelength of electromagnetic radiation carries the most energy?
Gamma rays have the most energy per photon.
What kind of radiation is emitted in the following nuclear reaction?
Type your answer here... Alpha decay Nuclear fission
What is the element with the most mass per nucleon?
The element has the lowest mass per nuclear particle is Iron, while hydrogen is the element with the highest mass per nuclear particle. Cause "nuclear particle" here means particles forming nucleus, like proton or neutron. Hydrogen has just one proton, and an atomic mass of 1.00794, it's mass per nuclear particle is also 1.00794. For heavier elements like Iron, they have higher atomic mass but also more particles in their nucleus. For instance, iron has 26 protons and 30 neutrons, and an atomic mass of 55.847, it's mass per nuclear particle should be 55.847/(26+30)<1, which is much smaller than that of hydrogen.
What is the only particle that can change in number for an isotope?
The Neutron- An element with the same number of protons and electrons, but with a different number of neutrons per atom than the original element is called an "isotope". An isotope will have, for all intensive purposes, about the same chemical and physical properties as the original element. Isotopes are written as the element, followed by a dash, then the number of neutrons in one atom of that isotope (Carbon-13 is an isotope of carbon with 13 neutrons per atom)
What is ionizing radiation and how can we reduce the risk of it damaging us?
Ionizing radiation is electromagnetic radiation or particulate radiation having enough energy per quantum to remove electrons from atoms, thus creating positive ions.The types of electromagnetic radiation with enough energy per photon (the quantum of electromagnetism) to ionize atoms are:ultraviolet Cx-raysgamma raysThe types of particulate radiation with enough energy per particle (i.e. quantum) to ionize atoms are:alpha particlesbeta particlescosmic rays (both primary and secondary)The only way to reduce the risk is to minimize exposure, but remember exposure cannot be completely eliminated as all of these types of ionizing radiation are present at low dose rates all around us.
What is the kinetic energy per particle?
Kinetic energy per particle is the energy an individual particle possesses due to its motion. It is calculated using the equation KE = 0.5 * m * v^2, where m is the mass of the particle and v is its velocity.
Which is more harmful to you a source emitting a million photons per second or a million neutrons per second?
Photons are light and while you do not specify the energy of this light (high energy light such as gamma radiation, X-Rays or UV light can be harmful) on balance a neutron source would be more harmful. This is because the neutrons have mass and on hitting you will tend to damage the atoms which make up your body.
What particle makes up most of the volume of the atom?
It is usually considered to be neutrons and protons that hold most of an atom's mass, however there is one theoretical subatomic particle that is used to help explain mass, called the higgs boson particle.
Why is radiation referred to as ionizing radiation?
Radioactivity occurs with the breakdown r decay of certain unstable atomic nuclei. This nuclear radiation is dangerous because it has a lot of energy-on the order of millions of electron volts per emitted particle. Because chemical bonds take about 3-4 electron volts to break, this energy is enough to break apart ordinarily stable molecules into smaller, highly reactive fragments-most of which are ions. Thus, nuclear radiation gets the name ionizing radiation.
Is ultraviolet radiation a higher or lower energy radiation than visible light?
Ultraviolet radiation is of higher energy than visible light. Ultra-violet suggests that it is above violet in the spectrum, and the colour violet is the uppermost region of visible light.
Which property spells the difference between infrared and ultraviolet radiation?
Ultraviolet radiation means:ultraviolet: radiation lying in the ultraviolet range; wave lengths shorter than light but longer than X rays. Infrared radiation means: electromagnetic radiation with wavelengths longer than visible light but shorter than radio waves.
