Please guys help!! This is in chemistry

acid rain does not usually kill trees directly. instead, it is more likely to weaken the trees by damaging their leaves, limiting the nutrients available to them, or poisoning them with toxic substances slowly released from the soil. the main atmospheric pollutants that affect trees are nitrates and sulphates.

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

b) nuclear ive learned that in a pedtrodic table

12 is it do you think so