0
An unstable nucleus loses the most mass if the nucleus emits what?
Wiki User
∙ 12y ago
The greatest mass loss to a nucleus undergoing decay by emission happens through alpha radiation. In this case, the Atomic Mass is reduced by approximately 4. Emission of a neutron (rare) or proton produces a loss of about 1. Other emissions cause smaller losses.
Wiki User
∙ 14y ago
Wiki User
∙ 12y agoAn alpha particle, 24He2+, unless the decay is by fission, in which case the change in mass can be substantially greater.
Add your answer:
Earn +20 pts
What happen to atomic number and mass number of nucleus when it emits electron?
"Number" goes up by one, mass stays the same.
When the radioactive isotope of Th-234 emits a beta particle to become Pa-234 it also loses a small amount of mass which is emitted as?
gamma radiation!
What is the mass of an atomic nucleus?
The hydrogen-1 nucleus is the same as the mass of a proton - since it is a proton. The proton's mass is 1.67×10−27 kg. Other nuclei have several times this mass - up to about 250 times the mass of a hydrogen nucleus.
What is the mass and volume of the nucleus?
If you mean the nucleus of an atom, different atom have different masses - an uranium atom has more than 200 times the mass of a hydrogen-1 atom (and most of that mass is in the nucleus).
Sum of the masses of constituent nucleons is greater than mass of a nucleus The difference is due to?
Energy released during the formation of nucleus and it is equivalent to loss of mass (mass defect).
How does the composition of an atom change when it emits a beta particle?
When a nucleus emits a beta particle, it loses one of its neutrons and gains one proton. Hence, it's mass and atomic number remain the same but its charge and What_happens_to_a_nucleus_when_it_emits_a_beta_particlenumber is increased by +1.
What happen to atomic number and mass number of nucleus when it emits proton?
Both get decreased as At. no = No. of Protons & At. mass = No. of protons + No. of neutrons in the nucleus.
What happens to the mass number of a nucleus when it emits an electron?
When a nucleus emits a beta particle (electron) it is a result of neutron decay. This decay will also release an antineutrino and a proton is left which increases the atomic mass by one thereby changing the element.
What happens when an unstable nucleus decays via alpha radiation?
mass number decreases by 4atomic number decreases by 2the nuclei recoil quite strongly (compared to other modes of decay) due to the large mass of the alpha particle
What happen to atomic number and mass number of nucleus when it emits electron?
"Number" goes up by one, mass stays the same.
When radium-226 decays to form radon-222 the radium nucleus emits a?
When Radium-226 decays to form Radon-222, the Radium nucleus emits an alpha particle. The atomic number goes down by 2, and the mass number goes down by 4, matching the atomic number and mass number of the alpha particle.
What is the effect on the mass number and change of a nucleus when it loses alpha particles?
The mass number goes down by 4, and the atomic number goes down by 2 when a nucleus loses an alpha particle. XYZ --> alpha emission --> X-2Y-4Q + 24He2+
How do the mass number and charge of a nucleus change when it emits a gamma ray?
Neither changes. A gamma ray is just energy, and the nucleus simply transitions to a lower energy state.
When carbon-14 decays and emits a beta particle what is the atomic mass on the new nucleus?
Atomic number goes up by 1 and Mass stays the same
How does the mass of a nucleus change with alpha decay?
When an atomundergoesalpha decay, it loses two neutrons (as well as two protons).
How is the nucleus affected in gamma decay?
When the nucleus emits an alpha or beta particle, it is in the exited state. To return to the ground state, it has to emit energy. It emits this energy in the form of gamma rays. There is no change in the atomic no or the mass no when it emits gamma rays, but it does decrease the energy in the nucleus when gamma rays are emitted
What change is atomic number occurs when a nucleus emits an alpha particle?
An alpha particle is composed of two protons and two neutrons, so when an atom loses an alpha particle, its mass number decreases by four. However, since the atom loses two protons, it is now a different element. It is now the element with an atomic number minus the two protons.
