The elements helium, neon, and xenon are all part of the same on a periodic table.

a. row
b. group
c. diagonal
d. period

(idk what to put this on) i need asap

Nickel crystallizes in the face-centered cubic (fcc) lattice. the density of the metal is 8902 kg/m3. calculate the radius of a nickel atom.

One of the few xenon compounds that form is cesium xenon heptafluoride (csxef7). how many moles of csxef7 can be produced from the reaction of 13.0 mol cesium fluoride with 12.5 mol xenon hexafluoride? csf(s) + xef6(s) csxef7(s)

What does the mass of 0.7891 mol of ferric oxide (fe2o3)