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When uranium-238 atomic number 92 decays by emitting an alpha particle it becomes?
Wiki User
∙ 12y ago
The atomic number will decrease by 2.
An alpha particle is a helium-4 nucleus, and it contains a pair of protons and a pair of neutrons. During alpha decay, an atomic nucleus has its Atomic Mass decrease by 4, and its atomic number decrease by 2.
Wiki User
∙ 9y ago
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∙ 14y agoUranium 238........alpha particle........Thorium 234
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∙ 12y ago92238U --> (Alpha decay, t1/2 = 4.468x109 years) --> 90234Th + 24He2+
Wiki User
∙ 12y ago1. Yes, the atomic number of uranium is 92.
2. The first decay product by alpha particle emission from 235U is 231Th.
Wiki User
∙ 13y agoAlpha particle consist of two protons and two neutrons so after alpha emission atomic number decreases by 2 and atomic mass by 4 units.
Wiki User
∙ 13y ago234 Th, thorium
Wiki User
∙ 11y agoThe atomic mass decreases by 4.
Wiki User
∙ 12y ago238U----------------------- 234Th + α
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What happen to atomic number and mass number of nucleus when it emits alpha particle electron and proton?
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.
What particle does argon 39 atomic number 18 emit when it decays to potassium 39 atomic number 19?
An electron - also referred to as a beta particle.
What is the alpha decay equation for polonium-218?
When a polonium-216 nucleus undergoes alpha decay, it will lose an alpha particle, which is made up of 2 protons and 2 neutrons. This means that polonium-216, which has an atomic mass of 216 and an atomic number of 84, will become the element with the atomic number of 82 (84 minus 2), and will have an atomic mass of 212 (216 minus 4). Lead has an atomic number of 82. So, this is how polonium-216 becomes an isotope of lead when it emits an alpha particle.
Each fundamental atomic particle has an opposite particle A collision of these opposites will result in the annihilation of each particle These types of particles are referred to as?
Anti-matter. Antimatter.
When radium emits an alpha particle the resulting nucleus has atomic number?
The result is radon, atomic number 86. 226Ra - alpha particle = 222Rn (radon, a radioactive gas)
When radium-226 (atomic number 88) decays by emitting an alpha particle it becomes .?
?
Is radium identical to an alpha particle?
No. Radium is a heavy metal, atomic number 88 (with 88 protons). An alpha particle is a helium nucleus, atomic number 2. Radium decays by each atom emitting an alpha particle, becoming Radon gas, atomic nubmer 86.
What is the atomic mass-?
The atomic mass is the mass of a molecule, atomic particle or sub-atomic particle.
The nuclear reaction for the emission of gamma particle from cobalt 60?
Cobalt-60m decays by emitting a gamma particle. This changes neither the atomic number nor the isotope number, since no nucleons are lost. The gamma particle has an energy of 58.59 keV. The resulting atom is Cobalt-60.
Which atomic particle has an atomic mass of one amu but no net charge?
This atomic particle is the neutron.
What are the 4 types of radiation and what does each type do to the nucleus?
Usually with the '4 types of radiation' it is referred to:- alpha radiation (emission of an alpha particle = a helium nucleus = 2 neutrons + 2 protons):Hence for the emitting nucleus the mass number decreases by 4 and the atomic number by 2.- beta-minus radiation (emission of a beta- particle = an electron)Hence for the emitting nucleus the mass number remains the same and the atomic number increases by 1 (a neutron decays into a proton and beta- radiation)- beta-plus radiation (emission of a beta+ particle = a positron)Hence for the emitting nucleus the mass number remains the same and the atomic number decreases by 1 (under the addition of energy a proton decays into a neutron and a positron)- gamma radiation (emission of high energetic photons)The emitting nucleus doesn't change its mass number and atomic number,but it jumps from a higher energy level to a lower energy level.
After a single subatomic particle is removed from an atom of helium the helium atom becomes an atom of hydrogen What subatomic particle was removed?
Atomic number is reduced by one.So a proton has removed.
When an atom gives off a(an)..... It becomes an atom with an atomic number of two less?
An alpha particle, which is the nucleus of a helium atom.
An atomic particle that is positively charged?
This particle is the proton.
What is the negative subatomic particle in an atom is called?
Negatively charged sub-atomic particle: electron. Positively charged sub-atomic particle: proton. Neutrally charged sub-atomic particle: neutron.
The neutral particle of an atom weighing approximately one atomic mass unit?
This atomic particle is the neutron.
A neutral atomic particle called a proton?
A neutral atomic particle is called a proton. This is taught in science.
