Dados los siguientes compuestos, determinemos la cantidad de elementos presentes.

A) 3 CO₂

the density(ratio between mass and volume as m/v) decreases from top to bottom in periodic table group as the size increases and nuclear charge decreases. but in periods density increases from left to right as atom size decreases and nuclear charge increases.

since electrons are negative the answer is neagtaive

it’s previous models   because when i picked that son of a gun’s answer it was wrong look for previous models because they might make it a different letter