00:01
So now we'll work on problem 96 from chapter 8.
00:06
In this problem, suppose you were trying to find a substitute for sodium plus and nerve signal transmissions.
00:13
Where would you begin your search? what ions would be most like na plus? and for each ion you propose, explain the ways in which it would be similar to sodium plus and the ways it would be different.
00:24
Use periodic trends in your discussion.
00:29
So to look for something that's similar to sodium, we want to look at the element that surround sodium on the periodic table.
00:37
So first, we could look above and below.
00:50
And there we could see ions like lithium and potassium.
00:57
Now, lithium and potassium are both ions that have a positive charge, so that's similar to sodium.
01:04
However, they would be very different in size and mass because of how far they're right above and below, but the atomic numbers are very different, so we're going to have a much larger, smaller size, depending on if it's potassium or lithium.
01:29
So the charge is the same, but the sizes would be very different.
01:36
So second, we could look at left and right.
01:48
And so if we look to the left, it would be not exactly.
01:53
To the left, but it would be the previous element, which would be neon, and to the right is magnesium...