Answer:
Hydrogen is the lightest element in the periodic table. Hydrogen is a gas of diatomic molecules and is colorless, odorless, non-toxic, and highly combustible. It is the most abundant chemical substance in the universe as it constitutes roughly 75% of all normal matter.
Answer
2mph
Explanation:
divide the miles by the hours it takes to get
The answer is D. Ne, which stands for Neon.
