Color chemist

All right, this is Dr. B. Let's do the Lewis structure for H2S: Dihydrogen Sulfide. On the periodic table: Hydrogen, group 1, has 1 valence electron, but we have two Hydrogens here so...

Let's do the ICl4- Lewis structure. Iodine, 7 valence electrons; Chlorine, 7 as well, we have four Chlorines; and then we have this up here so we're going to add an additional valence...

This is the IF4- Lewis structure. For IF4-, we have a total of 36 valence electrons, which includes this valence electron here, as well. We'll put the Iodine at the center, it's the...

This is Dr. B. We're going to draw the Lewis structure for I2, Iodine gas, a very pretty purple gas. So let's start out. Iodine is in group 7 of the periodic table. That means it has 7...

OK, we're going to draw the dot structure for Chlorine gas--a poisonous green gas. This is Dr. B. And we'll start out by figuring out how many valence electrons we have for Chlorine....

This is the Lewis structure for C2F4. We'll look on the periodic table: Carbon has 4 valence electrons, it's in group 4 or 14, but we have two Carbons. And then Fluorine in group 7 or...

This is the ICl5 Lewis structure. For ICl5, we have a total of 42 valence electrons. We'll put the Iodine in the center, it's the least electronegative, and then we'll put the...

This is the IF3 Lewis structure. Iodine has 7 valence electrons. Fluorine, 7 as well, but we have three Fluorines for a total of 28 valence electrons. Iodine is the least electronegative, so...

This is the HCOOH Lewis structure: methanoic acid. The way it's written gives us quite a bit of information about HCOOH. First of all, we have an H in front, and that means it's going...

This is Dr. B. Let's do the ClF3 Lewis structure. ClF3 has a total of 28 valence electrons. We'll put the Chlorine at the center and the Fluorines around the outside. Form chemical...