Are organisms that are genetically similar enough to reproduce offspring

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.

a corroding iron, if that's one of your choices

answer; the numbers of valence electrons in the acetic acid molecule (ch3co2h) is 24;