Chlorophyll, the green coloring material of plants, contains 3.68% of magnesium by mass. Calculate the number of magnesium atoms in 5.00 g of the complex.
a) 1.40 × 10²⁰ atoms
b) 3.40 × 10²² atoms
c) 6.02 × 10²³ atoms
d) 2.20 × 10²¹ atoms