why is neon so rare on earth
i have the same question as you.
Neon is an element
Neon is an element.
No. Lithium is an element with atomic number 3 (or 3 protons) and neon is an element with atomic number 10 (or 10 protons). Both are not same.
Argon(Ar) and Helium(He)
Fluorine
Neon-20 is used for the same things as any other natural isotopes of neon. E.G. it is used to make neon lights and helium-neon lasers. Neon-20 isotopic concentration may be important for some geological or volcanlogic studies.
to have a full outer orbital like neon, it will have to bond with another element.
neon is a colourless element
The Element Neon has 10 protons and 10 electrons.
Is dentsity a chemical propertie or physical propertie
Neon certainly is an element. Every atom in neon has the same number of protons in its nucleus, namely 10, and every other atom in the universe has either more or fewer protons in its nucleus, which is what it means to be an element. That is what it means to be an element; you have the same particular number of protons in every single atom . Like Helium, Argon, Krypton, Xenon, and Radon, Neon is what we call a noble gas which means that it need not be able to form compounds at all, and unlike Krypton, Xenon, and Radon, but like Helium and Argon, it does indeed not form any compounds at all. It can of course form mixtures, such as if you mix it with other gases, including the other noble gases, but neon by itself is of course not mixed, or it would not be neon. Therefore, yes, neon is an element, not a mixture, and not a compound. If this was a homework question, I hope you will be able to answer it for yourself in future. What is more important, I really, really hope you will know what you are talking about when you do!