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Natali5045456 [20]
3 years ago
12

4. Which elements would have similar properties to potassium?

Chemistry
1 answer:
iren [92.7K]3 years ago
5 0

Answer:

The answer is A. Lithium and Sodium

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Aluminum has a face-centered cubic unit cell. How many atoms of Al are present in each unit cell
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Explanation:

As shown in the image attached, a face-centred cubic structure has 8 atoms at the corners and 6 face center atoms.

Each corner atom contributes to eight cell, so per unit cell 1/8 ×8 =1atom

Face center atoms contributes to two unit cells 1/2 × 6=3atoms

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Therefore the atoms in Al FCC per unit cell is 4

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hopefully this helped :3

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