How are reactivity patterns on the periodic table related to an element's use in everyday applications?

•The position of the electron in the atom can be explained by the presence of a concentric shell around the nucleus. The number of electrons in the outer shell of an atom determines its reactivity. Rare gases are less reactive because they have a completely electron shell.

Explanation:

A meteor is an asteroid or other object that burns and vaporizes upon entry into the Earth's atmosphere; meteors are commonly known as "shooting stars." If a meteor survives the plunge through the atmosphere and lands on the surface, it's known as a meteorite