The diameter of a proton is about \( 1.9 \times 10^{-15} \) meters. A hydrogen atom has an overall length of 100,000 times (or \( 1 \times 10^{5} \) times) the diameter of a proton. What is the length of the hydrogen atom, in meters, If it were written in scientfic notation? \( 1.9 \times 10^{-10} \) meters \( 1.9 \times 10^{-12} \) meters \( 1.9 \times 10^{-15} \) meters \( 1.9 \times 10^{-8} \) meters

To find the length of the hydrogen atom in meters, you can multiply the diameter of the proton by \( 1 \times 10^{5} \): \[ 1.9 \times 10^{-15} \text{ m} \times 1 \times 10^{5} = 1.9 \times 10^{-10} \text{ m} \] So, the length of a hydrogen atom is \( 1.9 \times 10^{-10} \) meters. In the grand scheme of things, the size of a hydrogen atom is still incredibly tiny, roughly about 100,000 times larger than a proton. It's fascinating to think about how everything in the universe, including you and me, is made up of these minuscule particles that are so far removed from our everyday experiences! If you're curious about atomic structure, the hydrogen atom also serves as a great introduction to quantum mechanics. Just as a single tinkerer can spark a larger invention, understanding how hydrogen atoms bond and interact opens up all sorts of fascinating discoveries, from organic chemistry to the very essence of life itself. Dive into books like "Quantum Chemistry" or "The Elegant Universe" for a captivating journey through the subatomic world!