Use the periodic table to determine how many atoms of phosphorus (p) are in a sample that has a mass of 172.90 g

3.36 × 10^24 atoms

We are given;

We are supposed to calculate the number of atoms of phosphorus;

In this case;

Therefore;

30.97 g contain 6.022 × 10^23 atoms

Thus, for 172.90 g

= (172.90 g /30.97 g) × 6.022 × 10^23 atoms/mol  

= 3.36 × 10^24 atoms

Thus, 172.90 g of phosphorus contains 3.36 × 10^24 atoms

by cartels in other countries, shipped by air, mail, or land. i cant really see your answer choices : /

"the periodic table is arranged in order of atomic number."