3 Question 2 (2 points
How many grams of Fe are produced from 17.2 g of FeO given the following
reaction:
3Fe + 2A1 --> 3Fe + A12O3

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.

2b2t

explanation:

2b2t

i think it's c. if you look search electronic symbol on google and then click on wiki it shows you a