¿Cuántos átomos quirales hay en la molécula (el estereoisomero natural es el alcanfor un repelente de la
2 points
polilla) *

A) 1
B)4
C)2
D)3

answer: atomic mass was originally used to arrange elements on the periodic table, but is no longer used to organize the modern version.

explanation:

originally atomic mass was used to arrange elements on the periodic table from left to right in a row. each column then shows similar properties of elements of a group.

in modern periodic table, the atoms are arranged in increasing atomic number. as atomic number represents the number of protons in an atom which is unique for every atom.