Noble Gases

There are six naturally occurring noble gases. They are all colorless, odorless, and monatomic.

9,312 Questions
Noble Gases

What do helium neon and fluorine have in common?

They are non-metals.

173174175
Noble Gases

What are noble gases and where on the periodic table are they?

Noble gases are elements that have all possible electron positions in the outer, or valence, shell filled. This makes them chemically non-reactive. They are found in group 18 on the periodic table (far right edge) of elements: Helium (He), Neon (Ne), Argon (Ar), Krypton (Kr), Xenon (Xe), and Radon (Rn). The name ununoctium has been assigned to what would be the next element down i the column,

Note that the noble gases, were originally considered to be inert until the 1960s when some creative chemists managed to find a way to get them to form some molecules with a few other elements like fluorine. Of the noble gases Xenon seems to be easiest to get to form compounds

636465
Noble Gases

What are some practical uses for neon?

As neon lights.

161162163
Noble Gases

What is less dense helium or air?

Helium is the less dense substance.

147148149
Noble Gases

How many valence electrons do each of the noble gases have. use this information to explian why the noble gases are unreactive?

A noble gas element has as many valence electrons as are needed to completely fill its valence shell: 2 for helium and 8 for all the others. Since a filled valence shell is the condition that other atoms are most likely to reach during chemical reaction, the noble gases are unreactive except with extremely electronegative elements such as fluorine, for which the chemical driving force for gaining an electron to fill the fluorine valence shell is stronger than the energy input required to extract an electron from one of the heavier noble gas atoms.

143144145
Noble Gases

What is the noble gas notation for arsenic?

[Ar]4s23d104p3

143144145
Noble Gases

What is the mass of the helium nucleus?

4 AMU, or atomic mass units.

139140141
Noble Gases

What is the noble gas configuration of Ga?

The electronic configuration of Ga is 1s22s22p63s23p64s23104p1

Expressed as a noble gas configuration this is

[Ar] 4s2, 3d10, 4p1

133134135
Noble Gases

Is there laughing gas inside a helium balloon?

No. Laughing gas is nitrous oxide. There is only helium inside a helium balloon.

131132133
Noble Gases

How do metals achieve noble gas configuration?

By losing however many electrons it takes to reach the previous row. For example, Ti4+

131132133
Buick Century
Physics
Chemistry
Noble Gases

Why is gas called unleaded?

Older gasoline used to contain chemicals such as tetra-ethyl lead. This prevented preignition in the engine and allowed engines to be higher compression. They stopped using it because of heath and environmental issues. Different additives are used in todays car fuels instead. Leaded fuel can still be used in offroad equipment and airplanes.

131132133
Noble Gases

What language did the name helium come from?

It comes from the Greek word Helios, meaning "sun".

123124125
Chemistry
History of Science
Elements and Compounds
Noble Gases

Who discovered helium?

The discovery of heliumHelium was discovered by the French astronomer Pierre Jules Cesar Janssen during a total solar eclipse in Guntur, India, in 1868. The same spectral emission lines were noted by the English astronomer Norman Lockyer, also in 1868, who proposed the name "helium," after Helios, the Sun God of Greek mythology.

In 1895 Sir William Ramsay separated for the first time helium from air in laboratory; the same year this experiment was repeated independently by Per Theodor Cleve and Nils Langlet in Sweden.
French Astronomer Pierre Jannssen.

123124125
Noble Gases

What are noble gases?

Noble gases are helium, neon, argon, krypton, xenon and radon.

777879
Noble Gases

Name the noble gas withe the smallest atomic number?

Helium

119120121
Noble Gases

What will happen when a lid of a jar of helium is removed?

The helium will float out and will be replaced by air if you open the lid of a jar.

117118119
Noble Gases

Can helium be broken down into a simpler substance?

No, Helium is an element.

117118119
Noble Gases

What has more mass hydrogen or helium?

Helium has more mass than hydrogen.

114115116
Noble Gases

Why noble GASES ATOMS exist independently?

because they have a completely filled configuratin and are stable.So they acquire stability and will not bond with any other atom and exist independently in free state.

111112113
Noble Gases

Are noble gases metallic?

No. The noble gases are non-metals.

113114115
Noble Gases

What is meant by noble gas envy?

This refers to the fact that many atoms will tend to gain or lose electrons to mimic the electron configurations of noble gasses.

109110111
Noble Gases

What causes a noble gas such as neon to emit colors?

a vacume tube and electricity.

107108109
Noble Gases

The noble gas notation of yttrium?

[Kr]5s24d1

107108109
Noble Gases

What are the 3 lightest members of the noble gases?

I don’t know

676869
Noble Gases

What kinds of gases or elements do not normally form compounds with other elements?

The elements that don't want to react and form compounds with other elements are the noble or inert gases, which are found in Group 18 of the Periodic Table. They include helium, neon, argon, krypton, xenon and radon. A feature of the elements in this group is that they have the maximum number of electrons possible in their outer (valence) shells, which is what makes them unreactive.

105106107

Copyright © 2020 Multiply Media, LLC. All Rights Reserved. The material on this site can not be reproduced, distributed, transmitted, cached or otherwise used, except with prior written permission of Multiply.