Very rare on Earth, what element is the tenth-most abundant element in the universe, making up less than 0.0001% of the crust's volume?

Neon is a chemical element with the symbol Ne and atomic number 10. It has an atomic weight of 20.9994, which makes it slightly denser than water, though less dense than most nonmetals. Its monoatomic form can be liquefied under reduced pressure, or at high reduced temperatures.

Asked by Vasilii Kulev · Last updated 4 years ago · 339 views · SOURCE