Noble Gas and Helium

Helium (Greek helios,"sun"), symbol He, inert, colorless, odorless gas element. In group 18 of the periodic table, helium is one of the noble gases. The atomic number of helium is 2.

Helium is rare because there are no biosynthetic ways of making it, and all the helium that we currently have in the world is a result of the decaying uranium and thorium

chemical element here on our own planet Earth. Though it is a rare, unreactive noble gas,

 This planet’s atmosphere is mostly hydrogen, with 15% helium and a little bit of

Helium is a lighter than air gas. It has a 4.00260 atomic mass while air or oxygen has a 15.9994 atomic mass . According to Jefferson Lab editor Thomas Jefferson National Accelerator Facility “Helium, the second most abundant element in the universe, was discovered on the sun before it was found on the earth.” (2017,[online]). Oxygen is one of the most common gas and every living thing needs it to live. “Oxygen is written as

Helium is the coolest thing in the world. It changes your voice. It makes your voice higher when your voice is really low. You put it in Balloons to make it stay up. You usually use it for party's. Well the first time that I did it it was really funny. But for my grandpas surprise birthday party we used helium for the balloons.

The raw material are rare to be found on earth which has rich in helium-3 that is mostly used for electronics, nuclear-fusion research and constructing solar panels.

Though there are over a hundred different elements, each one is unique in its complexity and properties. Helium has an atomic Number of two, that’s how you can tell it it has two positively charged atoms, or ‘protons’, in

The fourth most abundant and by far one of the most interesting elements, Neon, is definitely unique. The tenth element on the periodic table is known as a noble gas, with the symbol ‘Ne’. This element has a density of 0.0008999 g/cubic meter, a boiling point of -246.08 degrees Celsius, three natural isotopes, an atomic mass of 20.179, and a melting point of -248.59 degrees Celsius. It’s atomic number is ten, and its atomic mass is 20.179.

Mercury, discovered at 700 BC. This was known to the Ancient chinese and Ancient indians before 2000 BC and found in egyptian tombs from 1500BC. Nickel was discovered at 1751BC. After Iron, Nickel was believed to be the most element in the earth. It is used for the production of corrosion resistant alloys. Uranium was discovered at 1789, It has been used to color glass and ceramics. Today it is used for the production of nuclear fuel and weapons. 1791 was when titanium was discovered. Although it was discovered at this time, there wasn’t a use for it until 1940. It was used for

The placement of hydrogen and helium on the Periodic Table causes many of the mistakes, anomalies and exceptions in the rules it follows. First, hydrogen is a non-metal, but it is placed on the metal side due to its atomic number and because it only has one valence electron. Placing the element in the middle of the table keeps hydrogen from being falsely labeled as an alkali metal and keeps it from being classified as a metal since it isn’t identified with a specific column or group. Secondly, helium is a noble gas, but it has two valence electrons, which means it should be in group two. However, it is a non-metal so putting it in group two would also be inaccurate. To fix this, we also put helium in the center and used color coding to match

Helium makes up about Helium is the second most abundant element in the universe. It was discovered on the sun before it was found on earth. In 1868 a french astronomer, Pierre-Jules-Cesar Janssen noticed a yellow line in the sun’s spectrum while studying a total solar eclipse. With a wavelength of 587.49 nanometers Norman Lockyer realized that this line could not be produced by any element at the time. It was hypothesized that the sun was responsible for this mysterious yellow emission. Lockyer named the unknown element helium.

Atomic Number: 7 Atomic Weight: 14.0067 Melting Point: -346.00°F Boiling Point: -320.44° F Density: 0.0012506 g/cubic cm Elemental State at Room Temperature: Gas Element Classification: Non-metal Introduction Nitrogen was discovered in 1772 by Daniel Rutherford. It is one of the most bountiful elements to exist. Nitrogen gas makes up 79.09% of the earth's atmosphere weighing over 4 trillion tons. It is created from liquefied air by the process known as fractional distillation.

Since the wavelength of the light in an atom can determine the identity of an element, this explains the reason on how helium was discovered. A French Astronaut, Pierre-Jules-César Janssen, noticed that there was a yellow line in the sun’s spectrum so Janssen decided to conduct some research in order to explain why the line existed. After years of thorough research, Janssen found out that the spectrum had a wavelength of 587.49nm. However, there was no element on Earth during that time that had that wavelength, so it was concluded that this element was a new element that had just been discovered. The reason why helium was discovered in the sun first was because since helium was a noble gas, it was stable so it did not react with any other elements. Therefore, the scientists had no way of discovering the element until the yellow line in the sun’s spectrum appeared.

Group 1- hydrogen: lightest element on the periodic table. lithium: lithium never occurs freely in nature. sodium:Sodium is the sixth most abundant element in the Earth's crust,. potassium:Potassium ions are necessary for the function of all living cells. rubidium: Rubidium has also been reported to ignite spontaneously in air. caesium:the element is only mildly toxic, it is a hazardous material as a metal and its radioisotopes present a high health risk if released into the environment. francium:Francium is the most unstable of the naturally occurring elements