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Ch.3 - Molecules, Compounds & Chemical Equations

Chapter 3, Problem 148

Element A is an atomic element, and element B is a diatomic molecular element. Using circles to represent atoms of A and squares to represent atoms of B, draw molecular-level views of each element.

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All right. Hello everyone. So this question is asking us to visualize elements X and Y as described element X which is an atomic element is where atoms are represented by triangles, an element Y, a diatomic molecular element where atoms are represented by squares, draw molecular level views of each of these elements. So here on the right side of the screen, I have a yellow triangle to represent element X and I have a red square to represent element Y. But before we go ahead and start putting together these molecular views, let's distinguish between an atomic element and a diatomic molecular element. Recall first and foremost that atomic elements are those that have only single atoms as their most basic units, which means that theyre composed of individual atoms of that particular element. Now, on the other hand, we can distinguish between molecular elements with the most common example being diatomic molecules or diatomic elements because in the case of a molecular element, the most basic units are molecules and in the case of a diatomic molecular element, you have two atoms of the same element connecting to each other. Now, it is worth mentioning that molecular elements can also exist as poly atomic molecules in which multiple atoms of the same element are bonded together as opposed to just two. But in this case, we're only going to show two atoms connecting together to create that diatomic. So let's go ahead and start with element X. Now, for element X, I'm going to go ahead and take the yellow triangle that I drew here previously and I'm going to make some copies of it just to showcase that there are going to be multiple in the sample here. And when placing these triangles together or when placing them in this particular view, it's important to recognize that element X should be depicted as separate triangles because it's an atomic element whose most basic unit is one single atom. So here I'm just copy pasting these yellow triangles and doing my best to space them apart from each other just so you can see that they're supposed to be separate. All right. So here I briefly pause the recording, but now we have our representation for element X. So now lets go ahead and proceed with element Y. So for element Y, because it's going to be represented as a diatomic, then two atoms are going to be bonded together to create the molecule, which is the most basic unit in this case. So here I am going to take two of the red squares and I'm going to place them in close proximity to each other and then to showcase that they're meant to be connecting together, I'm going to go ahead and draw a line between them that represents a bond. And now I'm going to make it copies of this molecule to represent element Y. All right. So now I once again, briefly pause the recording, but here you have it on the left is the representation of element X and on the right is the representation of element Y. And so with that being said, thank you so very much for watching. And I hope you found this helpful.