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2 protons and 2 neutrons. An alpha particle is the same as a helium nucleus.

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Does alpha decay always decreases the number of protons by an even number?

Yes, an alpha radiation particle is 2 protons and 2 neutrons so for every alpha particle emitted the radioactive nuclide loses 2 protons.


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.


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+)).


When a parent radioactive nucleus splits by ejecting an alpha particle the remaining nucleus has what left?

two protons and two neutrons less than the original nucleus.* A lower atomic mass (-4)* A lower atomic number (-2)In alpha decay, an alpha particle (helium nucleus) is given off.An alpha particle consists of 2 protons and 2 neutrons. THus the atom loses 2 protons and 2 neutrons. Proton number endows the identity of the element. The daughter nucleus is thus of a different element to the parent nucleus. It also has 2 fewer protons. Radium can decay by alpha emission, losing 2 protons from the original 88, leaving a nucleus of Radon with 86 protons.Neutrons and protons summed give the mass number of the atom. SInce an alpha-decayed nucleus loses a sum of 4 particles (protons and neutrons) the mass number goes down by 4.NovaNET answer: 2 protons and 2 neutrons less


What is a radioactive particle that is made up of two neutrons and two protons?

Used by Rutherford in his experiment made of two protons and two neutrons are alpha particles. Rutherford discovered the nucleus using his gold foil experiment.

Related Questions

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 element has the same number of protons and neutrons in its nucleus as an alpha particle?

An alpha particle has 2 protons and 2 neutrons. That is the same as a helium nucleus.


Does alpha decay always decreases the number of protons by an even number?

Yes, an alpha radiation particle is 2 protons and 2 neutrons so for every alpha particle emitted the radioactive nuclide loses 2 protons.


Are there more protons than electrons in an alpha particle?

Yes.An alpha particle is the nucleus of a helium atom, with no electrons. There are 2 protons and 2 neutrons.


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.


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 is the composition of an alpha particle, which consists of two protons and two neutrons?

An alpha particle is composed of two protons and two neutrons.


What does the 2 in alpha particle represent?

The symbol for an alpha particle is 24He2+. The first 2 means that there are 2 protons. The second 2+ means that the net charge is +2, which means, since there are 2 protons, that there are no electrons. The result is that an alpha particle is a helium nucleus without its electrons, i.e. 2 protons and 2 neutrons, but no electrons.


Which particle is composed of 2 neutrons and 2 protons?

An alpha particle.


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.


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+)).


When an unstable nucleus produces an alpha particle by how many units does the atomic number of the nucleus change?

An alpha particle is a helium nucleus, which consists of 2 protons and 2 neutrons. When an unstable nucleus emits an alpha particle, it loses 2 protons, which means its atomic number will be reduced by 2.