How many atoks are in each element sampke? 16.5 g Sr, 26.5 g Fe, 7.73 g Bi, 36.4 g P

16.5gm of Sr(strontium) has 1.12 x10^23 atoms...26.5 gm of Fe(iron) has 2.84 x10^23.... 7.73 gm of Bismuth has 2.22 x10^22.....36.4gm of  Phosphorus has 7.06 x10^23

Explanation:

by the formula,

                          Moles=

you could find moles by

                                      Moles = given mass/atomic mass

Put the value of moles and multiply it by Avogadro's no you will get the following answers

c-14 is carbon-14, or radiocarbon.   it is a radioactive isotope of carbon with an atomic nucleus containing 6 protons and 8 neutrons.

level 4 to level 2 : ))