Which of the following are isotopes? Two carbon atoms, one with 6 electrons and one with only 5 electrons.
Two oxygen atoms, one with 6 neutrons and one with 5 neutrons
Two nitrogen atoms, both with 7 protons and 7 neutrons
An oxygen atom with 6 neutrons and a nitrogen atom with 6 neutrons

I think it is either B or C for me it was C

Explanation:

in 1783 cavendish was working with his hydrogen gas and found that when he burned it and condensed the vapor it was water. this was very significant since it disproved the greek theory of elements completely since water was not a simple substance but the product of two gases. it was lavoisier who hearing of the experiment gave cavendish's gas the name hydrogen ("water-producer") and added that hydrogen burned by combining with oxygen and that water was a hydrogen-oxygen combination.

explanation: