Answer: 80
Explanation: The atomic number is the number of protons in an atom's nucleus. Since mercury has an atomic number of 80 it has 80 protons.
Explanation:
Could intelligence simply be unlikely to evolve? Unfortunately, we can’t study extraterrestrial life to answer this question. But we can study some 4.5 billion years of Earth’s history, looking at where evolution repeats itself, or doesn’t.
Answer:
its a or b most likely a tho
Explanation:
The answer is mitochondrion