When a beta particle is emitted from a nucleus via Beta- decay, the mass number stays the same, and the atomic number goes up one, because one neutron is changed into one proton by Beta- decay.
In Beta+ decay, the opposite is true. A proton is converted into a neutron, again keeping the mass number the same, but in this case reducing the atomic number by one.
The ending result is different, however. In Beta-, the beta particle is an electron, while in Beta+, the beta particle is a positron.
They don't. Only atoms really have an atomic number, which is the number of protons in each atom, so when that number changes as in alpha and beta radiation the atom no longer has a neutral charge and becomes an ion. Gamma radiation is an electro-magnetic wave so it doesn't affect the atomic number and the particle is still an atom. Hypothetically, nd I'm not sure it's possible, alpha radiation would reduce the atomic number by 2, beta would reduce it by 1 and gamma doesn't reduce it at all anyway.
An atom's mass does not change when it emits gamma radiation. Gamma radiation is a type of electromagnetic radiation with no mass or charge, so the total mass of the atom remains constant. The energy and momentum carried by the gamma radiation may cause the atom to recoil, but the mass of the atom itself does not change.
It's been awhile for me, but this is how I remember it. It is not convenient for me to look it up right at the moment, so you may want to verify this. Emitting an alpha particle (2 proton 2 neutron), atomic number would decrease by 2 and atomic mass decreases by 4.Electron emission means a neutron turns into a proton and electron, but the electron shoots out. The atomic number increases by 1 and atomic mass stays the same. Proton emission, well it loses a proton. So the atomic number decreases and mass decreases.
A black body emits more radiation than a white body. A black body absorbs all radiation that falls on it and re-emits it as thermal radiation, making it an ideal emitter. On the other hand, a white body reflects most radiation and thus emits less overall.
It depends on whether the beta decay is beta- or beta+. The alpha emission reduces the atomic number by 2. Beta- increases the atomic number by 1 while beta+ decreases the atomic number by 1. You do the math.
The atomic number does not change when gamma radiation is emitted.
It remains the same.
There is no change in atomic number with the emission of gamma radiation. Unlike alpha or beta radiation, it does not have any kind of particles. It's emission results only when an excited nuclei goes to an unexcited state by emitting these.
Emitting a positron, turns a proton into a neutron. So the atomic number goes down by 1, while the mass number remains the same.
The atomic number will decrease by 2, the number of protons in the emitted alpha particle. An alpha particle is a helium-4 nuclei with two protons and two neutrons.
They don't. Only atoms really have an atomic number, which is the number of protons in each atom, so when that number changes as in alpha and beta radiation the atom no longer has a neutral charge and becomes an ion. Gamma radiation is an electro-magnetic wave so it doesn't affect the atomic number and the particle is still an atom. Hypothetically, nd I'm not sure it's possible, alpha radiation would reduce the atomic number by 2, beta would reduce it by 1 and gamma doesn't reduce it at all anyway.
An atom's mass does not change when it emits gamma radiation. Gamma radiation is a type of electromagnetic radiation with no mass or charge, so the total mass of the atom remains constant. The energy and momentum carried by the gamma radiation may cause the atom to recoil, but the mass of the atom itself does not change.
The resulting element is protactinium, atomic number 91.
An alpha particle has 2 protons and 2 neutrons. This would make the atomic number decrease by 2 and the Atomic Mass will decrease by 4.
Alpha particles are emitted from the atom taking with it 2 protons and (I am pretty sure) two neutrons. This will change the atomic number of the atom and the atomic weight.
D. All of these change. In alpha decay, an isotope emits an alpha particle, which consists of two protons and two neutrons, leading to a decrease in the atomic number and mass number of the parent isotope. This results in the formation of a new element with a different name, atomic number, and mass number.
The sun emits energy in the form of radiation (light & atomic particles). This energy is crucial to life on our planet.