What represents alpha decay?

Answer 1

148/64 Gd ---> 144/62 Sm + 4/2 He (apple executive)

Answer 2

Alpha decay is a radioactive or nuclear process, a type of radioactive decay, in which an alpha particle is emitted from the nucleus of an atom. It's essentially a quantum mechanical tunneling phenomenon. The ejection of the alpha particle from a nucleus will decrease its atomic number by two, and its mass by four. Alpha decay is a possible decay scheme for a number of different radionuclides. In this event, an unstable nucleus reaches a point where it can no longer remain together, and an alpha particle is ejected from the nucleus. The nucleus can then "rearrange" itself and decide if it likes the new arrangement, or if it is still unstable and will again undergo some kind of radioactive decay. The alpha particle is a pair of protons and a pair of neutrons, which is a helium-4 nucleus. We write it that way when we write out nuclear equations. There are a number of different radioisotopes that undergo this decay process, and just one example is radon-222. Radon-222 decays by alpha emission into polonium-218. Here's how the equation might look: 86222Rn => 24He + 84218Po Note that all subscript and superscript numbers on each side of the equation balance. In this case, 86 = 2 + 84, and 222 = 4 + 218. There should be a lower case Greek letter alpha above the "arrow" indicating the type of decay, but character limits here do no allow that. Note also that nuclear transmutation has occurred in alpha decay; one element has changed into another. If you are wondering what happens to the alpha particle, it will quickly gather a pair of electrons from the environment and become a "whole" helium-4 atom.

Answer 3

Alpha decay is the emmision of a high speed alpha particle (two neutrons, two protons together; a helium nucleus) from the nucleus. Beta decay is the release of a beta particle (extremely high speed electron) and a gamma wave (high energy EM wave) when a neutron turns into a proton (which stays), an electron and some energy.

Answer 4

Alpha decay is represented as

ZXA(parent) ------>Z-2YA-4(daughter) + 2He4 (alpha particle) + Q

Where Z = atomic number, A = Mass number and Q represents energy released as a result of mass defect in the decay.

Answer 5

Alpha decay can most simply be described like this:

1) The nucleus of an atom splits into two parts.

2) One of these parts (the alpha particle) goes zooming off into space.

3) The nucleus left behind has its atomic number reduced by 2 and its mass number reduced by 4 (that is, by 2 protons and 2 neutrons).

The link below will help.

Answer 6

Alpha decay is when a massive nucleus ejects a fully ionized Helium nucleus, also called an alpha particle.

Beta decay is when a neutron in the nucleus becomes a proton and ejects an electron, also called a beta particle. Antibeta decay is when a proton in a nucleus becomes a neutron and ejects a positron, also called an antibeta particle. K capture is when a proton in a massive atom captures an electron from the innermost electron shell (K shell) and becomes a neutron. All three types of beta decay also involve ejection of a neutrino.

Answer 7

ejection of a fully ionized helium nucleus