An ion is different from its parent atom by having a different number of electrons. ... A: The octet rule describes how atoms form stable ions by gaining or losing electrons to fill their outer s and p orbitals with eight electrons.
Answer:
organisms in rain water and the number of organisms in pond water because the dependant variable never changes
Explanation:
because the dependant variable never changes
I am also taking the test, but I think it's C. But I'm not exactly sure
The answer is color as the least reliable
