List the following in order of smallest to largest atomic radius: si, fe, ci, k,ca ! : )

Cl < Si < Fe < Ca <K

The atomic radius decreases from left to right across a period and increases from top to bottom in a group.

Thus, the largest atoms are at the lower left and the smallest are at the upper right.

Locate the atoms in the Periodic Table (see the attached image).

In decreasing order of size, K > Ca > Fe > Si > Cl.

The order from smallest to largest is Cl < Si < Fe < Ca <K.

What number of Fe atoms and what amount (moles) of Fe atoms are in 500.0 g of iron? 500.0 g (1 mol / 55.845 g) = 8.953 mol 8.953 mol (6.023 X 10 23 atoms / 1 mol) = 5.392 X 10 24 36. A diamond contains 5.0 X 10 21 atoms of carbon.