0
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 else can I help you with?
A negative charged particle emitted during radioactive decay?
The negative charged particle emitted during radioactive decay is called a beta particle. It is essentially an electron that is released from the nucleus of the atom undergoing decay in order to conserve charge. Beta decay occurs when a neutron in the nucleus is transformed into a proton, releasing a beta particle and an antineutrino.
In the radioactive decay of 204 Pb to 200 Hg the other product is?
The other product of the radioactive decay of 204 Pb to 200 Hg is an alpha particle (4 He nucleus). This decay process involves the emission of an alpha particle, leading to the formation of 200 Hg.
What happens to a radioactive nucleus when it emits gamma ray?
When a radioactive nucleus emits a gamma ray, it releases high-energy photons without changing its atomic number or mass. This emission helps the nucleus transition to a lower energy state, leading to greater stability.
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.
What represents a beta particle?
0/-1 e
When a parent radioactive nuleus splits by ejecting an alpha particle two protons and two neutrons the remaining nucles has the origival nucleus?
Yes it does
What radioactive particle is the size of a helium nucleus?
alpha particle
What happens to a radioactive nucleus when it emits alpha particle and What happens to a radioactive nucleus when it emits alpha particle?
When a radioactive nucleus emits an alpha particle, it decreases by two protons and two neutrons. This results in a new nucleus with a lower atomic number by 2 and lower mass number by 4. The emitted alpha particle is a helium nucleus (2 protons and 2 neutrons) and carries a positive charge.
What happens to a radioactive nucleus when it emits is gamma particle?
it becomes stable.
A high-speed electron ejected from a nucleus durng radioactive decay is called a?
an alpha particle
Which particle is emitted from a hydrogen-3 nucleus when it undergoes radioactive decay?
When a hydrogen-3 nucleus undergoes radioactive decay, it emits a beta particle (specifically an electron) and an anti-neutrino to transform into helium-3.
An alpha particle has the same structure as which nucleus?
The radioactive alpha particle has the same structure as the atomic nucleus of helium. They are usually formed and emitted during alpha decay.
Nucleus of the chemical element atomic number 2 emitted by some radioactive substances?
The nucleus of the chemical element with atomic number 2 is known as an alpha particle. It is emitted by some radioactive substances during the process of alpha decay, where a parent nucleus releases an alpha particle to become a more stable daughter nucleus. Alpha particles consist of two protons and two neutrons bound together.
If a radioactive nucleus with an atomic number of 88 emits an alpha particle what will the atomic number of the new nucleus be?
Two less, since the alpha particle takes away two protons.
Is an alpha particle radioactive?
An alpha particle itself is not radioactive, but it is the result of a type of radioactive decay called (obviously) alpha decay. The alpha particle is actually a helium-4 nucleus, and it will eventually pick up a pair of electrons and become an atom of that inert or noble gas.
Why would an atomic nucleus give off a particle?
An atomic nucleus gives off a particle to become more stable and reach a lower energy state. This process is known as radioactive decay.
Is a delta particle a fast moving electron given off by a nucleus during radioactive decay?
No, a delta particle is not a fast moving electron given off by a nucleus during radioactive decay. The electron described here is a beta particle, and specifically a beta minus particle. It is given off in (no surprise) beta minus decay. A link to a related question can be found below.
