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Which type of radioavtive decay does the mass number remain unchanged?
In gamma decay, the mass number remains unchanged as there is no emission of particles, only high-energy gamma rays are emitted. This process does not affect the nucleus composition, unlike alpha and beta decays which result in a change in the mass number.
Which factors have the greatest influence of radioctive decay?
The two main factors influencing radioactive decay are the type of radioactive isotope being used and the half-life of the isotope. Different isotopes decay at different rates, with shorter half-lives leading to quicker decay. Other factors like temperature and pressure can also influence decay rates to a lesser extent.
Why does gamma decay occur?
Gamma decay occurs when an excited nucleus releases energy in the form of a gamma ray photon in order to reach a more stable energy state. This type of decay often follows alpha or beta decay processes, as the nucleus transitions to lower energy levels. Gamma decay allows the nucleus to shed excess energy without changing its atomic number or mass.
What are the particles emitted during radioactive decay with their mass and charge?
alpha: mass 4, charge +2beta: mass ~1/1800, charge -1gamma: mass 0, charge 0
What does alpha decay do to an atom mass and atomic number?
Alpha decay decreases the atomic mass of an atom by 4 units and the atomic number by 2 units. This is because an alpha particle, which consists of 2 protons and 2 neutrons, is emitted during the decay process.
Which type of radioavtive decay does the mass number remain unchanged?
In gamma decay, the mass number remains unchanged as there is no emission of particles, only high-energy gamma rays are emitted. This process does not affect the nucleus composition, unlike alpha and beta decays which result in a change in the mass number.
What is mass converted to in nuclear processes?
nuclear decay, such as alpha decay or beta decay.
How is the atomic mass number of a nucleus changed by alpha decay or by beta decay or by gamma decay?
The mass does not change much. The Atomic number will increase though.
What type of nuclear decay results in the atomic number decreasing by two and the mass decreasing by two?
Emission of an alpha particle.
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.
What type of nuclear decay release energy but not an particle?
All nuclear decay releases both energy and particles. Even gamma rays from the meta stable decay of Technetium-99m, being only photons, are particles, because a photon is considered a particle - or is it energy? - or is it mass? - hmmm? - see quantum mechanics on that one.Also, Einsten's famous mass energy equivalence equation e = mc2 states rather plainly that energy is mass and mass is energy. That means that if nuclear decay releases energy, then it also releases mass, and vice versa. There is no way around the equivalence.Do not misunderstand this. The equation does not mean that energy can be converted into mass or vice versa, it means that energy is mass and vice versa. Neither energy nor mass can be created nor destroyed. So, when an atomic bomb goes off and loses mass generating a high amount of energy, the mass that is lost is simply carried away with the energy.Sorry if it seems I deviated from the topic, but I did not. This is part of reinforcing the answer and enhancing the explanation.
What type of decay does fermium undergo?
Fermium undergoes primarily alpha decay, where it emits an alpha particle consisting of two protons and two neutrons. This process reduces the atomic number by 2 and the atomic mass by 4.
What are the different types of radioactive decay and how do they differ from each other?
There are three main types of radioactive decay: alpha decay, beta decay, and gamma decay. Alpha decay involves the emission of an alpha particle, which is a helium nucleus consisting of two protons and two neutrons. This type of decay reduces the atomic number of the nucleus by 2 and the mass number by 4. Beta decay involves the emission of a beta particle, which can be either an electron (beta-minus decay) or a positron (beta-plus decay). Beta decay changes the atomic number of the nucleus by 1 but does not significantly affect the mass number. Gamma decay involves the emission of gamma rays, which are high-energy photons. Gamma decay does not change the atomic number or mass number of the nucleus but helps the nucleus reach a more stable energy state. These types of decay differ in the particles emitted and the changes they cause to the nucleus.
What type of nuclear decay results in the atomic number increasing by one with no change in mass?
Beta- decay result in an increase of atomic number by one, with no resulting change in the atomic mass number.There is a change in mass, since an electron and an electron anti-neutrino is emitted, and also because the neutron changes into a proton, but the atomic mass number, per se, does not change.
Iodine -131 undergoes radioactive decay to form an isotope with 54 protons and 77 neutrons what type of decay occur in this isotope?
The number 131 on the end shows us the mass of the isotope of iodineIf there are 53 protons, you need to take that away from the mass number to get the number of neutrons(Remember, electrons have such a small mass, we say that they have no mass at all, just to make it easier)131 - 53 = 78So the answer is A
How do you calculate the initial and final mass for a radioactive decay equation?
To calculate the initial and final mass in a radioactive decay equation, you would typically use the equation: final mass = initial mass * (1 - decay constant)^time. The initial mass is the quantity of the radioactive substance at the beginning, while the final mass is the amount after a specified amount of time has passed.
Does atomic mass stay the same?
The atomic mass of a radioactive atoms is changed during the radioactive decay (alpha decay, neutron decay, proton decay, double proton decay), spontaneous or artificial fission, nuclear reactions.
