Asked by Sophia

A mass of 135 g of an element is known to contain 30.1 1023 atoms. What is the element?
hydrogen
oxyden
aluminum
carbon


Is it aluminum?
Answered by Ali ranjber
Aluuminim
Answered by Anonymous
5- Consider Close packing of spheres as shown in figure.
a- What is the lattice corresponding to this arrangement?
b- What axes can be defined for this lattice?
c- What are the primitive axes?
d- How many spheres are there in a cell? Hint: add sphere fractions inside the cell.