What is the order of decreasing atomic radius?
1. antimony, bismuth, phosphorus
2. bismuth, phosphorus, antimony
3. antimony, phosphorus, bismuth
4. phosphorus, antimony, bismuth
5. bismuth, antimony, phosphorus
6. phohshorus, bismuth, antimony

The order of decreasing atomic radius is bismuth, antimony, phosphorus. Number 5.

Explanation:

The largest elements are the furthest to the left and down on the periodic table. The closer to the top right of the periodic table the smaller the element.

The atomic numbers are:

43.452

step-by-step explanation:

284 times .153 = 43.452

number of molecules / avogadro's number * molecule molecular = mass

explanation:

we define a gram-molecular weight as the mass of one mole of any element or compound. a mole contains avogadro's number of units (molecules) –  

6.022

x

10

23

. so, dividing the number of molecules by avogadro's number gives us the number of moles. multiplying that by the molecular weight gives us the mass. from the periodic table we find the gram-molecular weight of u to be238 and of f to be19. so,  

u

f

6

will have a gram-molecular weight of 352g.