00:03
So this question is asking us again about some properties of the nucleons that make up atoms.
00:10
And to start off with our first question is that we're looking for a nucleon that has the mass that is about the same as a proton.
00:19
So mass about the same as a proton.
00:23
If we look here at the row that i've marked size, we can see that protons and neutrons are relatively large.
00:29
Of course, everything is extremely tiny.
00:32
But electrons are about 2 ,000 times smaller than protons and neutrons.
00:38
So the one that is about the same size as a proton, well, obviously the proton is about the same size as the proton, but that would be a very trivial question.
00:48
So the one they're looking for in this case is the neutron.
00:59
Neutron is not a proton, but it is about the same size as a proton.
01:03
So that's what they're looking for here.
01:07
Second, they are asking for what is found in the nucleus...