Answer:
did not understand a thing
<u>Answer:</u> The edge length of the unit cell is 0.461 nm
<u>Explanation:</u>
We are given:
Atomic radius of iridium = 0.163 nm
To calculate the edge length, we use the relation between the radius and edge length for FCC lattice:
![a=2\sqrt{2}R](https://tex.z-dn.net/?f=a%3D2%5Csqrt%7B2%7DR)
Putting values in above equation, we get:
![a=2\sqrt{2}\times 0.163=0.461nm](https://tex.z-dn.net/?f=a%3D2%5Csqrt%7B2%7D%5Ctimes%200.163%3D0.461nm)
Hence, the edge length of the unit cell is 0.461 nm
Answer:
In contrast to the attractive force between two objects with opposite charges, two objects that are of like charge will repel each other. That is, a positively charged object will exert a repulsive force upon a second positively charged object.
Explanation:
<h2><em>Hope it has answered your question</em></h2>
Organic fertilizers<span> are </span>fertilizers<span> derived from animal matter, animal excreta (</span>manure<span>), human excreta, and vegetable matter (e.g. </span>compost<span> and crop residues). Naturally occurring </span>organic fertilizers<span> include animal wastes from meat processing, peat, </span>manure<span>, slurry, and guano.</span>