00:01
Hello everyone and thanks for joining me, ms.
00:02
Hallstrom, as we discuss interpretation of isotope notation.
00:07
And let's begin.
00:09
First, i want to do a quick note that a will represent the mass number, which is the sum of protons and neutrons, and z will represent the atomic number, which is the number of protons.
00:21
I'm going to be giving you a substance and then i'll tell you what we need to figure out.
00:26
We are given uranium 235.
00:32
This is a number.
00:33
The uranium 235 isotope.
00:35
Uranium 235 is used in nuclear fission.
00:39
We are asked to calculate the number of protons, the number of neutrons, and we are asked to write the isotope notation in the format you see right here.
00:57
This is the mass number, and this is the atomic number, and e stands for element.
01:02
Okay.
01:05
Not much simpler than finding protons...