DOUBLE BUBBLE MAPS

Comparison between helium and fluorescent elements

GAS NOBLE ELEMENTS
Helium is used as a cooling medium for the Large Hadron Collider (LHC), and the superconducting magnets in MRI scanners and NMR spectrometers. It is also used to keep satellite instruments cool and was used to cool the liquid oxygen and hydrogen that powered the Apollo space vehicles.

Because of its low density helium is often used to fill decorative balloons, weather balloons and airships. Hydrogen was once used to fill balloons but it is dangerously reactive.

Because it is very unreactive, helium is used to provide an inert protective atmosphere for making fibre optics and semiconductors, and for arc welding. Helium is also used to detect leaks, such as in car air-conditioning systems, and because it diffuses quickly it is used to inflate car airbags after impact.

A mixture of 80% helium and 20% oxygen is used as an artificial atmosphere for deep-sea divers and others working under pressurised conditions.

Helium-neon gas lasers are used to scan barcodes in supermarket checkouts. A new use for helium is a helium-ion microscope that gives better image resolution than a scanning electron microscope.

 After hydrogen, helium is the second most abundant element in the universe. It is present in all stars. It was, and is still being, formed from alpha-particle decay of radioactive elements in the Earth. Some of the helium formed escapes into the atmosphere, which contains about 5 parts per million by volume. This is a dynamic balance, with the low-density helium continually escaping to outer space.

It is uneconomical to extract helium from the air. The major source is natural gas, which can contain up to 7% helium.

HELIUM
Helium → Helios (Yunani) : matahari
Helium = 0,00052 %
Electron configuration 1s²

Helium (He) is a chemical element that is colorless, odorless, tasteless, non-toxic, almost inert, monatomic, and is the first element in the noble gas series in the periodic table and has atomic number 2. On Mars only a little Helium. The boiling point and melting point are the lowest of the other elements and it exists only in gaseous form except in "extreme" conditions. Extreme conditions are also needed to create a small amount of helium compounds, all of which are unstable at standard temperature and pressure. Helium has a rare second stable isotope called helium-3. The properties of the fluid of the helium-4 varieties; Helium I and helium II; It is important for researchers who study quantum mechanics (especially in superfluidity phenomena) and for those looking for effects near absolute zero temperatures possessed by objects (such as superconductivity).
Helium is the second largest and lightest element in the universe and one of the elements created during Big Bang nucleosynthesis. In the modern Jagad Raya almost all new helium was created in the process of nuclear fusion of hydrogen inside the star. On Earth, this element was created by radioactive decay from heavier elements (alpha particles are helium nuclei). After its creation, some of it is contained in air (natural gas) in concentrations up to 7% by volume. Helium is purified from the air by a low temperature separation process called fractional distillation.

NEON

Neon → Neos (Yunani) : baru

Neon = 0,00182 %

Electron configuration [He] 2s² 2p⁶

Neon (Ne) adalah suatu unsur kimia dalam tabel periodik yang memiliki lambang Ne dan nomor atom 10. Neon termasuk kelompok gas mulia yang tak berwarna dan lembam (inert). Unsur Ne ditemukan pertama kali oleh William Ramsay dan Morris William Travers tahun 1898 di Inggris.

A. Helium

• As an air balloon filler. 
• As a mixture of oxygen in the diver tube. 
• Helium in the form of liquid can also be used as a coolant because it has a very steam point of red.

B. Neon

• Neon is usually used to fill fluorescent lamps. 
• Neon can be used to share things like high-voltage indicators, refrigerants, lightning rods, and television tubes. 
• Liquid fluid is a refrigerant in the refrigenerator for low temperatures. 
• Neon can also be used to mark the plane.