00:01
Okay, so we have to name the phone.
00:03
We see that cr is a transition metal.
00:06
And we see that te has a 2 minus charge.
00:11
So that means that cr has a 3 plus charge.
00:16
So since cr, which is chromium, is a transition metal, we need to use our roman numeral symbols.
00:22
So we have chromium, 3, and then telluride.
00:34
And now v, that's, let's see in our periodic table, that is vanium.
00:47
And you see that s .o .4 has a 2 -minus charge.
00:52
So v has a 3 plus charge.
00:54
So we have vanadium 3.
00:59
And then s -o -4, 2 -minus, referring to table 2 .3...