Question

nearest neighbouring distance or relation btw edge length and radius of body centred cubic unit cell 25 pts​

Answer 1

Answer:

Usually, the length of the cell edge is represented by a. 

The direction from a corner of a cube to the farthest corner is called body diagonal (say bd).

Face diagonal = fd

bd^2 = 3a^2

Atoms along the body diagonal (say bd) touch each other. Thus, the body diagonal has a length that is four times the radius of the atom, R.

bd = 4 r

The relationship between a and R can be worked out by the Pythagorean theorem:

4R=3a

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Answer 2

Answer:

A glycosidic bond or glycosidic linkage is a type of covalent bond that joins a carbohydrate molecule to another group, which may or may not be another carbohydrate. A glycosidic bond is formed between the hemiacetal or hemiketal group of a saccharide and the hydroxyl group of some compound such as an alcohol.