Solid -(s)
liquid - (l)
gas - (g)
aqueous - (aq)
I think it is c but I’m not sure
Answer:
The statement true is A. A and B are isotopes of the same element.
Explanation:
Isotopes correspond to atoms of the same element with different mass numbers (A), that is to say they differ in the amount of neutrons in the nucleus. In the case of compound A it has 10 neutrons, and B has 11.
A fossilized fish could be used to identify the date of of the rock layer.
