00:02
There, we have statements here that we want to identify as being true or false as written.
00:08
So our first one says a neutral atom always contains the same number of protons and neutrons.
00:14
Well, that is false.
00:16
To be neutral, it needs to have the same number of positive particles, which are protons, as negative particles, which are electrons.
00:31
So we need to change neutrons to electrons.
00:39
The number of neutrons actually can vary based upon which isotope we have.
00:48
So we can change neutrons to electrons to make this true, but originally it was false.
00:56
Okay, looking at letter b, the number of electrons is always equal to the number of protons in a neutral atom.
01:03
Well, that's what we were just talking about.
01:06
That is true.
01:09
A neutral atom is going to have the same number of electrons as the number of protons, because that's negative charges and positive charges.
01:19
They're going to be equal...