No, because crystalline has more than one element in it, basically it is a compound.
A white crystalline compound is also called cytidine.
yes
AgCl is a white crystalline solid and is well known for its low solubility in water.
element
Calcium oxide is a white, caustic and alkaline crystalline solid at room temperature.
A white crystalline compound is also called cytidine.
Chlorine.
"White crystalline" is not a criterion in this case.
It is a compound.
Butyl hydroxy toluene is a synthetic compound. It is soluble in fat. It is in the form of yellow or white crystalline solid.
It's a white crystalline solid.
Calcium sulphide is a compund, it has the formula CaS, and is a white solid.
Zinc
Sodium chloride is a white, crystalline, solid.
I assume that you really mean sodium iodide (NaI), as there is no compound called sodium iodine. NaI is a white crystalline solid.
Dextrose
yes magnesium nitrate is a solid, as it is a white crystalline solid from being a salt.