Answer:
Atoms get rearranged and make up different molecules. No atoms are created nor destroyed.
Explanation:
Dont know the first part but melanin quantities change the dkin color
<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:

Putting values in above equation, we get:

Hence, the edge length of the unit cell is 0.461 nm
It is translational motion. i know because i found it on this site. its verified too, have a nice day