Asthenosphere A thin layer of Earth, about 150 miles thick, at the
border between the mantle and the crust. It is very hot and nearly a liquid.

Use this word in a sentence or give an example to show you understand its meaning.

Afraidsugar lol it’s the third one

High-energy and unstable.

So the main goal for the elements is stability which is a complete/full valence shell and typically the magic number for a stable element is 8 valence electron but not always. so elements to the left of the periodic table tend to be way less stable then those on the right, so the elements on the left are much more reactive.