NOBLE GASES (YOUTUBE VIDEO)
The noble gas elements are the longest studied by scientists because to make them alone, the first compound made of xenon requires a high temperature of XePtF6
Precious gases are gases that are inert, nonreactive, and hard to react with other chemicals. Noble gas is widely used in the industrial sector. Here are the noble gases:
• Helium
• Neon
• Argon
• Krypton
• Xenon
• Radon
1. Helium
Helium is a chemical element in the periodic table that has the symbol He and
the atomic number 2. Helium is colorless, odorless, tasteless, non-toxic,
almost inert, a monatomic gas, and is the first element in the noble gas group
in the periodic table. The boiling point and melting point of this gas is the
lowest among all elements. Helium materialized only as a gas except in very
extreme conditions. Extreme conditions are also needed to create a small amount
of helium compounds.
Helium is the second largest and second-lightest element in the universe, accounting for 24% of the total universe of total unity and 12 times the mass of all other heavy elements. The same abundance of helium can also be found in the Sun and Jupiter.
On Earth, this gas is quite rare (0.00052% atmospheric volume).
Helium is the second largest and second-lightest element in the universe, accounting for 24% of the total universe of total unity and 12 times the mass of all other heavy elements. The same abundance of helium can also be found in the Sun and Jupiter.
On Earth, this gas is quite rare (0.00052% atmospheric volume).
2. Neon
Neon is a chemical element in the periodic table that has the symbol Ne and atomic
number 10. Neon includes a group of noble gases that are colorless and inert.
Colorless gas, will become orange red when placed in a high-voltage electric
field.
3. Argon
Argon is a chemical element with the Ar symbol and the atomic number 18. It is
on the 18th group of the periodic table. The Argon is the third most common gas
in the Earth's atmosphere, with an abundance of 0.934%
Virtually all of these argons are argon-40 radiogenic derived from potassium-40 decay in the Earth's crust. In the universe, argon-36 is by far the most common argon isotope, an isotope of argon produced by stelar nucleocynthesis in supernovae.
The name argon is derived from the Greek αργον, a singular form of αςος meaning "lazy" or "inactive", as a reference to the fact that this element hardly ever undergoes chemical reactions.
Argon is produced industrially through the distillation of liquid air fractions. Argon is widely used as an inert gas protector in welding and other high-temperature industrial processes where the normally unreactive material becomes reactive; For example, argon atmosphere is used in graphite electrical furnaces to prevent burning graphite.
Virtually all of these argons are argon-40 radiogenic derived from potassium-40 decay in the Earth's crust. In the universe, argon-36 is by far the most common argon isotope, an isotope of argon produced by stelar nucleocynthesis in supernovae.
The name argon is derived from the Greek αργον, a singular form of αςος meaning "lazy" or "inactive", as a reference to the fact that this element hardly ever undergoes chemical reactions.
Argon is produced industrially through the distillation of liquid air fractions. Argon is widely used as an inert gas protector in welding and other high-temperature industrial processes where the normally unreactive material becomes reactive; For example, argon atmosphere is used in graphite electrical furnaces to prevent burning graphite.
4. Krypton
Krypton is located in air with concentration of about 1 ppm. This gas is
characterized by a spectrum of bright green and orange lines.
Under normal conditions, krypton is a colorless, odorless, expensive gas.
Solid cryptton is a white crystalline substance with a cube structure, as in most other "noble gases".
Krypton is probably one of the rarest gases in the atmosphere. There is a total of more than 15 billion tons of this gas in the atmosphere with about 8 tons per year extracted through liquid air.
Krypton is used to fill the electric light bulb using a mixture of krypton and argon.
Krypton is also used in photographic projection lamps, in high energy lights such as those used at airports and in strobe-lamps because it has a very fast response on electric current.
This gas is inert and is classified as a gas that causes mild breathlessness.
Krypton is a rare, non-toxic, and inert atmospheric gas.
Gases at extreme cold temperatures (-244 degrees C) will freeze the organism during contact, although this is almost impossible naturally occurring.
Under normal conditions, krypton is a colorless, odorless, expensive gas.
Solid cryptton is a white crystalline substance with a cube structure, as in most other "noble gases".
Krypton is probably one of the rarest gases in the atmosphere. There is a total of more than 15 billion tons of this gas in the atmosphere with about 8 tons per year extracted through liquid air.
Krypton is used to fill the electric light bulb using a mixture of krypton and argon.
Krypton is also used in photographic projection lamps, in high energy lights such as those used at airports and in strobe-lamps because it has a very fast response on electric current.
This gas is inert and is classified as a gas that causes mild breathlessness.
Krypton is a rare, non-toxic, and inert atmospheric gas.
Gases at extreme cold temperatures (-244 degrees C) will freeze the organism during contact, although this is almost impossible naturally occurring.
5. Xenon
Found in the remaining residue after the liquid air is filtered fractionally.
Spectroscopic analysis shows a previously unseenly blue line that indicates a
new element
The name comes from the Greek word 'xenos', meaning foreigner.
Xenon is filled with a glass tube of xenon element symbol that has several thousand volts applied. It ionizes the xenon, which responds by emitting light.
Xenon is not considered to be toxic but many of its compounds are toxic as a result of its strong oxidizing properties.
Xenon is a rare, colorless and odorless heavy gas.
Xenon is inert against most chemicals.
Many xenon compounds have now been made, especially with fluorine or oxygen. Both oxides, xenon trioxide (XeO3) and xenon tetroxide (XeO 4) are very explosive.
Xenon is used in photographic photography, in high-pressure arc lamps for motion picture projection, and in high-pressure arc lamps to produce ultraviolet light.
These are used in instruments for radiation detection, such as X-ray counters and neutron rayon and bubbles.
Xenon is used in medicine as general anesthesia and in medical imaging.
Modern ion astronomers for space travel use inert gases - especially xenon - for propellants, so there is no risk of explosion associated with chemical propulsion
The name comes from the Greek word 'xenos', meaning foreigner.
Xenon is filled with a glass tube of xenon element symbol that has several thousand volts applied. It ionizes the xenon, which responds by emitting light.
Xenon is not considered to be toxic but many of its compounds are toxic as a result of its strong oxidizing properties.
Xenon is a rare, colorless and odorless heavy gas.
Xenon is inert against most chemicals.
Many xenon compounds have now been made, especially with fluorine or oxygen. Both oxides, xenon trioxide (XeO3) and xenon tetroxide (XeO 4) are very explosive.
Xenon is used in photographic photography, in high-pressure arc lamps for motion picture projection, and in high-pressure arc lamps to produce ultraviolet light.
These are used in instruments for radiation detection, such as X-ray counters and neutron rayon and bubbles.
Xenon is used in medicine as general anesthesia and in medical imaging.
Modern ion astronomers for space travel use inert gases - especially xenon - for propellants, so there is no risk of explosion associated with chemical propulsion
6. Radon
Radon is a chemical element in the periodic table that has the symbol Rn and
atomic number 86. Radon is also included in the group of noble and radioactive
gas. Radon is formed from radium decomposition. Radon is also the most serious
gas and harmful to health. Rn-222 has a half-life of 3.8 days and is used in radiotherapy.
Radon can cause lung cancer, and is responsible for 20,000 deaths in the EU
each year
Radon is not easy to react chemically, but radioactive, radon is also a natural gas (the heaviest gas compound is tungsten hexafloride, WF6). At room temperature and pressure, the radon is colorless but when cooled to freeze, the radon will be yellow, while the liquid radon is red orange.
Radon gas accumulation naturally in the Earth's atmosphere occurs so slowly that the water that touches free air continues to lose Radon due to the process of "Volatilization. Ground water has higher Radon content than surface water.
Radon is sometimes used by some hospitals for therapeutic uses. The radon is obtained by pumping from the Radium source and stored in a small tube called '' seed '' or '' needle ''. Radon is rarely used again, however, as hospitals can now get seeds from '' suppliers '' that produce seeds with the desired decay rate. Usually used cobalt and cesium that is resistant for several years, so it is more practical in terms of logistics.
Because of its fairly rapid decay, radon is also used in hydrological investigations that examine the interactions between underground water, creeks and rivers. Increasing radon in creeks or rivers is an important clue that there is an underground water source.
Radon is not easy to react chemically, but radioactive, radon is also a natural gas (the heaviest gas compound is tungsten hexafloride, WF6). At room temperature and pressure, the radon is colorless but when cooled to freeze, the radon will be yellow, while the liquid radon is red orange.
Radon gas accumulation naturally in the Earth's atmosphere occurs so slowly that the water that touches free air continues to lose Radon due to the process of "Volatilization. Ground water has higher Radon content than surface water.
Radon is sometimes used by some hospitals for therapeutic uses. The radon is obtained by pumping from the Radium source and stored in a small tube called '' seed '' or '' needle ''. Radon is rarely used again, however, as hospitals can now get seeds from '' suppliers '' that produce seeds with the desired decay rate. Usually used cobalt and cesium that is resistant for several years, so it is more practical in terms of logistics.
Because of its fairly rapid decay, radon is also used in hydrological investigations that examine the interactions between underground water, creeks and rivers. Increasing radon in creeks or rivers is an important clue that there is an underground water source.
Would you please describe the usefulness of the noble gas element?
BalasHapusUsefulness of Helium (He)
Hapus1. As a gas filling air vessels and hot air balloons for studying the weather, because of its hard-to-react, non-combustible and lightweight.
2. The air used by divers is a mixture of 80% He and 20% oxygen. Helium is used to replace nitrogen because if the diver is at high pressure (under the sea) then most likely nitrogen dissolves in the blood. In just a small amount of nitrogen soluble in the blood, there will be a hallucination called nitrogen nitrogen. Due to these hallucinations the divers experienced such a drug exposure that endangered the divers. In addition, when nitrogen dissolves much in the blood and the diver returns to its normal state, a nitrogen gas bubble bursts in the blood causing intense pain as nitrogen passes through the blood vessels and can even lead to death. This is called benos.
3. Helium and Oxygen mixtures are also used by workers in underground tunnels and high pressure mines.
Use of Neon (Ne)
1. Neon is usually used to fill the fluorescent lamp
2. Neon is also used as a refrigerant, high voltage indicator, lightning rod and for television tube fillers.
3. Liquid fluid is used as a coolant in nuclear reactors.
Use of Argon (Ar)
1. As an incandescent lamp filler because it does not react with hot tungsten wire
2. For billboard light with pink light
3. As atmosphere of welding objects made of stainless steel, titanium, magnesium and aluminum. Suppose titanium welding on the manufacture of aircraft or rockets
Krypton Utility (Cr)
1. The krypton gas together with argon is used to fill the low pressure tioresensi lamp (fluorescent lamp). Krypton is what makes the light turns white.
2. For high-speed photography flash
3. Krypton is also used in lighthouse lights, lasers for retinal treatment.
Xenon Usability (Xe)
1. For anesthesia of patients at the time of surgery because xenon is anesthetics (flavoring)
2. Making lamps for bactericide (bacteria killer)
3. To eject the light on the camera during shooting (flash)
Radon Usability (Rn)
1. Radon gas is radioactive so it is widely used in radiation therapy for cancer patients by utilizing the light dihsilkan. However, if radon sucked in sufficient quantities will cause lung cancer
2. Due to rapid decay, radon is used in hydrological investigations that examine the interactions between underground water, creeks and rivers
3. Radon can also act as an earthquake warning because when the earth plate moves radon levels will change so that bias is known if there is an earthquake of radon levels changes.
Why there is no natural gas noble compounds?
BalasHapusSo far, chemists have discovered a noble gas element in monoatomic, diatomic or decaying form. The noble gases in nature are in monoatomic form because they are not reactive. Therefore, noble gas extraction generally uses physical properties. Exceptions are Radon obtained from decay of radioactive elements.
Hapuswhat isVolatilization?
BalasHapusVolatilization is an evaporative event of volatile substances
HapusExplain the difference between neon and argon ?
BalasHapusNeon is the second lightest noble gas after helium.
HapusThis gas is reddish orange when inserted in a vacuum tube and in a fluorescent lamp.
The fluorescent cooling capacity is 40 times greater than liquid helium and 3 times the liquid hydrogen (per unit volume).
Neon is a cheaper refrigerant than helium in most applications. Although generally not reactive (inert), this gas can form exotic compounds with fluorine in the laboratory.
It is not known for certain whether there are neon compounds in nature due to its non-reactive nature.
Although neon is the fourth most abundant element in the universe, the earth's atmosphere contains only 0.0018% neon.
While
Argon allegedly existed in the air by Henry Cavendish in 1785, but was not discovered until 1894 by Lord Rayleigh and Sir William Ramsay.
Argon is the third noble gas and contributes to about 1% of Earth's atmosphere.
Argon has oxygen-like solubility and is about 2.5 times easier to dissolve in water than nitrogen.
This inert chemical element is colorless and odorless in both liquid and gas form. Argon is usually obtained by liquid air fractionation.
For information, the atmosphere of Mars contains 1.6% Ar-40 and 5 ppm Ar-36.
In the Earth's atmosphere, Ar-39 is created by cosmic ray activity. In subsurface environments, argon is generated through the capture of neutrons by K-39 or alpha emissions by calcium. Argon-37 is produced from calcium-40 decay, the result of an underground nuclear explosion.
Argon is also present in some potassium minerals due to radioactive decay of 40-potassium isotope.
Explain the order of reactivity of noble gas elements ??
BalasHapusThe noble gas reactivity will be directly proportional to the radius of the atom, so the reactivity of the noble gases will increase from He to Rn this is due to the increase of atomic radius causing the core attraction to the outer shell electron to decrease, making it more easily attracted by other atoms.
HapusBut noble gases are non-reactive elements because they have electron configurations that are already satbil, this is supported by the fact that noble gases in nature always exist as single or monoatomic atoms. But that does not mean that noble gases can not react, until now the noble gases of period 3 and up (Ar, Kr, Xe, Rn) have been able to react with highly electronegative elements like Flourin and Oxygen.
"The stability of this noble gas is caused by a fully charged electron configuration, an octet configuration (duplet for Helium)." Please explain
BalasHapusThe noble gas element has a perfect electron configuration, or it can be called complete, where each skin and sub skin is fully charged electrons. With that statement, we can assume that the elemental and noble valence electrons are eight, exceptions to the Helium element with two valence electrons. This kind of configuration causes the noble gases to tend to be stable in monoatomic form and difficult to react with other elements. The elements of the noble gas element consist of Helium, Neon, Argon, Krypton, Xenon, and also radon. The first gas discovered was Argon by Lord Rayleight.
HapusWhy is a noble gas free as a monoatomic gas? Please explain it to me
BalasHapusThe noble gases in nature are in monoatomic form because they are not reactive. Therefore, noble gas extraction generally uses physical properties. Exceptions are Radon obtained from decay of radioactive elements.
Hapus