00:01
Here we are identifying some elements.
00:02
So what we have here is 15 protons, 16 neutrons, 18 electrons.
00:13
So the element with 15 protons is phosphorus, and an ionic form of phosphorus that has 18 electrons would need a charge of minus 3.
00:22
So therefore, this is p3 minus.
00:29
Next we have 8 protons, 8 neutrons, 8 electrons, 8 electrons, 8 electrons, 8 electrons, so this is a straightforward one.
00:37
This is just oxygen.
00:41
Next we have an element with 30 protons 35 neutrons and 28 electrons.
00:51
So the element with 30 protons is zinc and an ionic form of zinc with 28 electrons has a charge of 2 plus...