Question

Give the five most common elements.

Answer 1

Elements:

• A material that cannot be broken down into other substances is referred to as an element.
• About a hundred plus elements exist, each with its unique atom type.
• Atoms of at least one or more elements can be found in every part of the cosmos.
• The periodic table is a list of all known elements that group them according to their characteristics.

Most common elements:

• Hydrogen $\left(\mathrm{H}\right)$, Helium $\left(\mathrm{He}\right)$, Oxygen $\left(\mathrm{O}\right)$, Carbon $\left(\mathrm{C}\right)$, and Neon $\left(\mathrm{Ne}\right)$ are the five most abundant elements in the Milky Way galaxy.
• Oxygen $(46\%)$ is the most prevalent element in the Earth's crust, followed by Silicon $\left(\mathrm{Si}\right)$ $(28\%)$, Aluminum $\left(\mathrm{Al}\right)$ $(8.3\%)$, Iron $\left(\mathrm{Fe}\right)$ $(5.6\%)$, and Calcium $\left(\mathrm{Ca}\right)$ $(5.6\%)$.