For it to be the same element it must contain the same number of protons
The branch of chemist is a substance of science and pysical is the land science such as a desert of a forest those are chemist and physical science have a good day :)
Answer: The middle hydrogen is surrounded by 4 electrons, the middle hydrogen is bonded to 2 elements, and there are too many electrons in the final structure are correct.
Explanation: I just did this question and got the correct answers.
Answer:
I think It is an organism