00:03
Hi there.
00:03
In this question, the given isotope is emitting an alpha particle.
00:08
So i want to start off by talking about what an alpha particle is.
00:14
An alpha particle is a particle that has two protons and two neutrons.
00:23
Its symbol is often written as a helium nucleus because it has two protons.
00:30
So its atomic number would be two.
00:34
And remember the mass number is the sum of the protons and the neutrons.
00:37
So they're for its mass number is four.
00:40
So we can write the symbol for an alpha particle as 4 over 2, h .e.
00:45
All right, let's look at what we're starting with here.
00:47
We're starting with abysmuth isotope with its atomic number of 83 and a mass number of 214...