an unknown compound with
mass of 223.94 g/mol consists of 32.180 6 c. 4.50%
h. and 63.32% c1. find the molecular formula for the compound.

since the atomic number is the number of protons in the nucleus, as we move to the left on the periodic table, the electrostatic pull between the nucleus and the valence electron shell decreases. as we move down a group (vertical column), the valence shell energy level gets further and further from the nucleus.

well in order to answer this question you have to provide more information < 3

a:

by the combination of an unlimited number of elements