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Any atom with two protons has an atomic number of two and is an isotope of helium. With two neutrons, there are a total of nucleons is four, so the isotope or mass number is four (sum of protons plus neutrons). Therefore the atom is helium-4 or 4He, which is stable (not radioactive) and the most common isotope of helium in nature, account for nearly 100% of all helium.
A helium nucleus, also known as an alpha particle, has two protons and two neutrons.
An isotope of Hydrogen called Tritium has one Proton and two Neutrons. Hope this helps.
It is an atom of helium (helium-4) that has a pair of protons, a pair of neutrons and a pair of electrons.
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Which subatomic particle is present in the nucleus of an atom?
The atomic particles that make up an alpha are two protons and two neutrons. The subatomic particles are contained within the neutrons & protons and there are too many to list here, plus I don't know all of them.
The radioactive particle that is positively charged and has two protons and two neutrons is the?
An alpha particle consists of two protons and two neutrons.
The number of protons plus neutrons in an alpha particle?
An alpha particle consists of two protons and two neutrons, for a total of 4 protons plus neutrons.
What is negatively charged atomic particle?
Electron is the negatively charged atomic particle. It orbits around the nucleus of an atom and carries a unit of negative electrical charge.
How many nucleons does an alpha particle contain?
An ALPHA particle may be thought of a a helium nucleus. It contains two protons and two neutrons. An alpha particle is a high speed helium nucleus (He^(2+)).
What neutrons are in an alpha particle?
A nucleon is the amount of protons and neutrons. An alpha particle has an atomic number of 2 and a atomic mass of 4 then it has 2 protons and 2 neutrons.There are 4 nucleons in an alpha particle.
What is the change in the atomic number when the atom emits an alpha particle?
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.
Which subatomic particle is present in the nucleus of an atom?
The atomic particles that make up an alpha are two protons and two neutrons. The subatomic particles are contained within the neutrons & protons and there are too many to list here, plus I don't know all of them.
The radioactive particle that is positively charged and has two protons and two neutrons is the?
An alpha particle consists of two protons and two neutrons.
What particle consists of two protons and two neutrons it is the same as a helium nucleus release of a what particle by an atom decreases the atomic number by 2 and the mass number by 4?
The particle that consists of two protons and two neutrons, equivalent to a helium nucleus, is an alpha particle. When an atom releases an alpha particle, its atomic number decreases by 2 and its mass number decreases by 4.
The number of protons plus neutrons in an alpha particle?
An alpha particle consists of two protons and two neutrons, for a total of 4 protons plus neutrons.
What is a subatomic particle that is part of a structure of the atomic nucleus?
Atomic nuclei have two kinds of subatomic particles, which are protons and neutrons.
What element has atomic structure similar to an alpha particle?
The element with atomic structure similar to an alpha particle is helium. An alpha particle consists of two protons and two neutrons, the same as the nucleus of a helium atom.
What is negatively charged atomic particle?
Electron is the negatively charged atomic particle. It orbits around the nucleus of an atom and carries a unit of negative electrical charge.
What happens to atomic number and atomic mass of an atom that emits alpha particle?
When an atom emits an alpha particle, its atomic number decreases by 2 and its atomic mass decreases by 4. This is because an alpha particle consists of 2 protons and 2 neutrons, which are lost from the atom during the emission process.
When an alpha particle is emitted the nucleus of the original element?
When an alpha particle is emitted, the nucleus of the original element loses two protons and two neutrons, transforming into a new element. This process is a type of radioactive decay that helps the nucleus become more stable.
When an unstable nucleus produces an alpha particle by how many units does the atomic number of the nucleus change?
When an unstable nucleus produces an alpha particle, the atomic number of the nucleus decreases by 2 units. This is because an alpha particle consists of two protons and two neutrons, so when it is emitted from the nucleus, the atomic number decreases by 2.
