Noble Gases: Properties of Each Element Essay

The element Argon though was suspected to be presented in the air by Henry Cavendish in 1785 but it was first discovered by Lord Rayleigh and Sir William Ramsay in 1894 it was discovered in England . The name Argon originated from the Greek word ‘Argos meaning idle. Argon is the third Noble Gas in period eight of the periodic table, and makes up less than 1% of the Earths atmosphere. It was obtained when Rayleigh and Ramsay isolated air and exanimated the residue of air after Nitrogen was removed from the mixture. This element was the first of the inert gases to be discovered on Earth, and always appears associated with nitrogen. Argon has no compound.

Helium is the second most abundant element in the universe, after hydrogen; however, it is rare on earth, primarily found mixed with natural gas trapped in underground pockets. Once helium is released it is so light it escapes the earth's atmosphere and cannot be recovered. At sea level, helium occurs in the atmosphere in the proportion of 5.4 parts per million. The proportion increases slightly at higher altitudes. About 1 part per million of atmospheric helium consists of helium-3, now thought to be a product of the decay of tritium, a radioactive hydrogen isotope of mass 3. The common helium isotope, helium-4, probably comes from radioactive alpha emitters in rocks. Natural gas, which contains an average of 0.4 percent helium, is the major commercial source of helium. By far the largest users of helium are agencies of the United States government.

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,

The noble gases are the gaseous elements helium, neon, argon, krypton, xenon, and radon, in group 18 of the periodic table. Additionally, they are considered the most unreactive of the elements, due to the fact that the valence electrons are all “full”, thus making the group the most stable, as well. When it comes to the periodic trends, the noble gases have the some of the lowest densities because they are gaseous elements, meaning they state of matter consisting of particles that have neither a definite volume nor definite shape. The lack of electronegativity of the noble gasses is based off of their group, which already has a full outer shell, meaning they do not attract any electrons.

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

ANS: Both NO and NO2 are gases under standard conditions. Each molecule of NO2 has three atoms, and each molecule of NO has two atoms. Thus, NO2 should have the

Hydrogen rests at the summit of group yet it is not a representative of that family. Hydrogen is inside a category of its own. Gas at free space temperature.

He showed that every element is unique. William Ramsay helped create Noble Gases on the periodic table by discovering argon, helium, neon, krypton, and xenon by isolating them from air.

Alfred Noble was a Swedish chemist, most famous for inventing dynamite. He may also be called a business man, engineer, inventor, and philanthropist. Since he really didn’t discover an element, I will list the elements it is made from and their information. Dynamite is nitroglycerin which is basically carbon, hydrogen, nitrogen and oxygen. It also contains an absorbent that contains silicone. Now, let’s get into the details, starting with Carbon. Carbons atomic number is 6, its atomic mass is 12, and it has 6 protons, 6 neutrons and 6 electrons. The next element used in dynamite is Hydrogen. Hydrogen’s atomic number and atomic mass is 1, it has 1 proton, 1 electron, and 0 neutrons. The third element is nitrogen. Nitrogen’s atomic number is 7, it has an atomic mass of 14. It has 7 protons, neutrons, and electrons. Finally, is the famous oxygen, with an atomic number of 8

The element is colourless, odourless, tasteless and non-toxic. This makes it undetectable, as it is also inert and does not combine well with other elements. Helium is also extremely light (the 2nd lightest out of all the elements in fact). It is a monatomic gas (non-metal) with the lowest boiling and melting points among all the elements.

The largest use of neon is in making the ubiquitous ‘neon signs’ for advertising. Neon is also used to make high-voltage indicators and switching gear, lightning arresters, diving equipment and lasers.

The atoms of the 18 noble gases including neon and argon, etc, will almost never form stable molecules by chemically bonding with other atoms. It’s simple to build a gas discharge tube such as a neon light which reveals that inertness is a relative matter. To create a neon sign, you need to provide a high enough electric voltage to electrodes at the ends of a glass tube containing the noble gas. The light then begins to glow. For most neon signs, it takes at least 3000 volts.Argon

Gallium is an element which was originally found in France. The city was not given to me so I am believing it was not recorded at the time. It was found by a scientist whose name was Paul Emile Lecoq. The year it was founded in was 1875. Its element symbol is Ga.

Elements exist all around us. There are actually one hundred and fifteen elements. Ninety of these one hundred and fifteen are naturally occurring. Metals make up ninety one of the one hundred fifteen elements. One element that fits all these characteristics; weighing in at thirty five point thirty nine grams, having an atomic number of thirty and grouped into group twelve on the periodic table, is none other than zinc.