If the edge length of an NaH unit cell is 488 pm, what is the
le...

Question

If the edge length of an NaH unit cell is 488 pm, what is the 
length in picometers of an Na¬H bond? (See Problem 12.50.)

Accepted Answer

Hey everyone, we're told that magnesium oxide follows the rock salt structure and its unit cell has an edge length of 4 21 PICO meters determine the length in PICO meters of a magnesium oxygen bond. So first I will go ahead and pull up our rock salt structure and we're going to say that blue Will be our magnesium with a plus two charge. While our orange is going to be our oxygen with a -2 charge from our crystal cities, we can see that half of the edge length is the magnesium oxygen bond. So to determine the magnesium oxygen bond length, All we need to do is take 421 pickle meters and divide this by two. This will get us to a value of 211 PICO m, which will be our final answer. Now I hope that made sense and let us know if you have any questions.

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