filmov
tv
Alpha Decay Equations | Radioactivity | GCSE Physics (9-1) | kayscience.com
Показать описание
In this video you will learn all the science for this topic to get a grade 9 or A* in your science exams!
Alpha decay is the emission of an alpha particle from the nucleus of an unstable radioactive isotope. An alpha particle has two protons, two neutrons, and no electrons. Its charge is +2. An alpha particle has the symbol 𝜶.
The relative atomic mass of an alpha particle is four, because it has two protons and
two neutrons. The atomic number of an alpha particle is two, because it has two protons.
When an alpha particle is emitted from a nucleus, the nucleus loses two protons and two neutrons. Therefore, the relative atomic mass of the unstable radioactive isotope decreases by four, and its atomic number decreases by two.
We aim for you to get 100% in your exam by revising and learning with KayScience.
Alpha decay is the emission of an alpha particle from the nucleus of an unstable radioactive isotope. An alpha particle has two protons, two neutrons, and no electrons. Its charge is +2. An alpha particle has the symbol 𝜶.
The relative atomic mass of an alpha particle is four, because it has two protons and
two neutrons. The atomic number of an alpha particle is two, because it has two protons.
When an alpha particle is emitted from a nucleus, the nucleus loses two protons and two neutrons. Therefore, the relative atomic mass of the unstable radioactive isotope decreases by four, and its atomic number decreases by two.
We aim for you to get 100% in your exam by revising and learning with KayScience.
0:04:24
0:02:11
0:04:37
0:03:32
0:03:37
0:17:06
0:21:30
0:01:48
0:00:39
0:04:54
0:08:07
0:00:39
0:00:48
0:54:11
0:02:44
0:02:45
0:01:00
0:10:31
0:00:15
0:05:57
0:26:04
0:00:06
0:14:12
0:03:48