Classify each lewis structure given below by molecular shape.
1 answer:
The question above is incomplete, but I have attached an image that shows the lewis structures that need to be sorted.
The molecules that go in the Linear column are 3 and 14.
The molecules in the Trigonal Planar column are 1 and 7.
The molecule in the Tetrahedral column is 12.
The molecules in the Bent column are 9 and 10.
The molecule in the Trigonal Pyramidal column is 5.
The molecules in the Other column are 2, 4, 6, 8, 11, and 13.
The molecules that go in the Linear column are 3 and 14.
The molecules in the Trigonal Planar column are 1 and 7.
The molecule in the Tetrahedral column is 12.
The molecules in the Bent column are 9 and 10.
The molecule in the Trigonal Pyramidal column is 5.
The molecules in the Other column are 2, 4, 6, 8, 11, and 13.
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Answer:
495 pm (see the relationship between the edge length (a) and radius (r) of atoms in attachment).
Explanation:
A <em>crystalline solid</em><em> possess rigid and long-range order; its atoms, molecules, or ions occupy specific positions</em>. A <em>unit cell</em><em> is the basic repeating structural unit of a crystalline solid</em>. Each sphere in the unit cell represents an atom, ion, or molecule and is called a <em>lattice point</em>. <u>The way the spheres are arranged in layers determines what type of unit cell we have.</u>
In the face-centered cubic cell, there are <u>spheres at the center of each of the six faces of the cube</u>, in addition to the eight corner spheres (see the second picture in the attachment). Each sphere in this arrangement is said to have a coordination number of 12 since each sphere is in contact with six spheres in its own layer, three spheres in the layer above, and three spheres in the layer below. The <em>coordination number</em><em> is defined as the number of atoms (or ions) surrounding an atom (or ion) in a crystal lattice</em>.
In the first picture in the attachment we can see that the relationship between the atomic radius <em>r</em> and the edge length <em>a</em> face-centered cubic cell is:
a=√8*r
Therefore, the edge length will be √8*175 pm = 495 pm
