0
An electron. As the mass of an electron is 00000000000000000000000000000091 kg
Wiki User
∙ 6y ago
Add your answer:
Earn +20 pts
What particle is emitted when Pt-190 decays to Os-186?
An alpha particle is emitted when Pt-190 decays to Os-186. An alpha particle has a mass number of 4, and an atomic number of 2. When Pt-190 decays to Os-186, the mass number drops by 4, showing that an alpha particle is emitted, along with energy. The other form of particle that could be emitted is a beta particle, which has a mass number of 0. The difference between 190 and 186 is 4, thus showing the emission of an alpha particle. Source: High School Chemistry class
When a beta particle is emitted does the mass number of the isotope remains unchanged?
With the ejection of a beta particle (electron), there is a minute loss of mass. Electrons have very low mass. The atomic number increases though as a neutron is transformed into a proton. A antineutrino is also ejected. In a similar process, positron emission also called beta decay,- a positron is emitted and a proton is transformed into a neutron, the atomic number decreases. A neutrino is also ejected.
How do the mass and size of an alpha particle compare with mass and size of beta particle?
The mass and size of an alpha particle compare with the masa and size of beta particle in the sense that the alpha particle is significantly larger in both size and mass that the beta and gamma particles. This is why it is called the alpha particle.
Which subatomic particle causes the masses to be different?
Every subatomic particle has mass, so every particle will cause a slight mass change. However, in an isotope, the mass change between the parent and daughter is caused by a change in the number of neutrons.
Which radioisotope has an atom that emits a particle with a mass number of 0 and a charge of plus 1?
19Ne
What subatomic particle has the lowest masses?
If you mean subatomic particle as in protons neutrons and electrons, electrons have the lowest mass. If you are talking even smaller, leptons have extremely tiny rest masses.
What is the mass number of the missing particle Co and Mn?
Manganese is a metal element. Mass number of it is 55.
How does the emission of an alpha particle change the mass number of the parent nuclide?
The mass number decrease with 4.
Can you use the atomic number and atomic mass to calculate the number of each subatomic particle?
atomic number = number of protons = number of electrons atomic mass = mass of protons + mass of neutrons
Describe what happens to the proton number and the mass number when an alpha particle is emitted by a nucleus?
Proton number is decreased by two while mass number is decreased by four. Since alpha particle is similiar to helium nucleus.
What is mass number for beta?
The mass number tells the nucleòns; the elèctròn and positròn are 0.
When an atom emits a 1 beta particle what can be said about is mass number and atomic number?
Emiting a beta particle is the result of a neutron changing into a proton so the atomic number increases by 1 and the mass number stays the same
When a nucleus undergoes radioactive decay its new mass number is?
It depends. If the decay contains a particle with mass, then the nucleus' mass number must decrease. If the decay involves the emission of a massless particle (like a gamma photon), then the mass number is unchanged. If the reaction (not technically a decay) involves the nucleus absorbing a particle with mass (like U-235 absorbing a neutron in a fission chain reaction) then it is a transmutation and not a natural decay. The mass number must increase.
How does the emission of an alpha particle change the mass number of a parent nuclide?
Mass number of the parent nucleus will be reduced by 4
What particle is emitted when Pt-190 decays to Os-186?
An alpha particle is emitted when Pt-190 decays to Os-186. An alpha particle has a mass number of 4, and an atomic number of 2. When Pt-190 decays to Os-186, the mass number drops by 4, showing that an alpha particle is emitted, along with energy. The other form of particle that could be emitted is a beta particle, which has a mass number of 0. The difference between 190 and 186 is 4, thus showing the emission of an alpha particle. Source: High School Chemistry class
What happens to atomic number and atomic mass of an atom that emits alpha particle?
An alpha particle is a positively charged nuclear particle consisting of two protons bound to two neutrons. The atomic number of an atom decreases by 2 and the mass number decreases by approximately 4 when an alpha particle is ejected.
What type of particle has a charge of 1 and a mass number of 0?
beta
