00:01
For this question, we have arsenic 74.
00:03
It has an atomic mass of 74 and an atomic number of 33.
00:07
And it's going under, going through positron emission and we want to know what nucleide is formed.
00:13
So i have our nuclear notation of arsenic written out.
00:17
It's going to release a positron, which has a mass of zero.
00:21
And then has, for all intents and purposes, a atomic number of one.
00:26
So that's our positron.
00:27
When determining the nuclei, we're going to look at what we started with and then basically what we're getting rid of.
00:36
So we had a mass of 74...