Yes, neon is a noble gas. Neon and the other noble gases (radon, krypton, argon, helium, and xenon) are in Group 18 of the periodic table. Noble gases are stable and non-reactive. Neon has no unpaired electrons because it possesses an entire set of 8 valence electrons. Hence, neon g...
Janssen recorded the helium spectral line during the solar eclipse of 1868, while Lockyer observed it from Britain. Lockyer was the first to propose that the line was due to a new element, which he named. The formal discovery of the element was made in 1895 by chemists Sir William Ramsay,...
Heliumis the second element of the periodic table and thus is an atom with two protons in the nucleus. Most Helium atoms have two neutrons in addition to the protons. In its neutral state, Helium has two electrons in orbit about the nucleus. Model of a helium atom's nucleus with two pr...
Pure silicon is chemically classified as a metalloid because silicon How many conduction electrons are in silicon? What is the electron density of water? What is the density of helium gas? What is the density of seaborgium? What is the density of metallic hydrogen?
13K Learn what is argon. Understand argon properties, such as its melting point, see its formula on the periodic table, and explore its uses as a noble gas. Related to this QuestionWhy is argon unreactive? Why is neon a noble gas? Why is helium a noble gas? Why are noble gases ch...
Become a Study.com member to unlock this answer! Create your account View this answer The answer to this question can be divided into metal and nonmetal elements. The most reactive nonmetal element is fluorine (F). It is located near... See full answer below....
A small subset of elements -- helium, neon, argon, krypton, xenon and radon -- are known asnoble or inert gasesand don't readily bond with other elements to form compounds. However, elements such as oxygen, chlorine and fluorine readily combine with other elements to form compounds. ...
The scientific study of matter's characteristics and behaviour is known as chemistry.Chemistry vocabularyandChemistry glossaryare different from the normal vocabulary. It is a branch of natural science that examines the building blocks of matter, including the atoms, molecules, and ions that make up...
A chemical element is a substance that is made of only one kind of atom. When reduced to a single atom of the substance, it will retain the same chemical properties as any other amount of the substance.Answer and Explanation: Become a Study.com member to unlock this answer! Create your ...
A metal, nonmetal or metalloid? What are the two primary gases in the homosphere? What group is argon in? Define noble gases What is the atomic number for helium? What is the scientific name for natural gas? What is the most compressible gas? What is a valence electron? What is the ...