The charge of this atom would be -2
Chemical properties can be determined by heat combustion, how they react with other chemicals, Oxidization (lose electrons, losing hydrogen, gaining oxygen), or toxicity.
12.01 amu
Work:
(12.000 × .9889) + (13.003 × .0111) = 12.01
- turn the precents into decimals
I would say letter D.
A is biology.
Ecology has to do with distribution of animals.