Explanation: The atomic number is the number of protons in the nucleus, so the atomic number is 10 (i.e. An atom of neon, Ne). The mass number is the total number of nucleons, which is the number of protons plus the number of neutrons. We're not given how many neutrons are in the atom, so we can't necessarily know this. Name: Neon Symbol: Ne Atomic Number: 10 Atomic Mass: 20.1797 amu Melting Point:-248.6 °C (24.549994 K, -415.48 °F) Boiling Point:-246.1 °C (27.049994 K, -410.98 °F) Number of Protons/Electrons: 10 Number of Neutrons: 10 Classification: Noble Gas Crystal Structure: Cubic Density @ 293 K: 0.901 g/cm 3 Color: colorless Atomic Structure.
Neon in the environment. Although neon is the forth most abundant element in the universe, only 0.0018% in volume of the earth's atmosphere is neon. Neon is usually found in the form of a gas with molecules consisting of a single Neon atom. Neon is a rare gas that is found in the Earth's atmosphere at 1 part in 65,000. Health effects of neon. Element Neon (Ne), Group 18, Atomic Number 10, p-block, Mass 20.180. Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images.
Element Neon - Ne
Comprehensive data on the chemical element Neon is provided on this page; including scores of properties, element names in many languages, most known nuclides of Neon. Common chemical compounds are also provided for many elements. In addition technical terms are linked to their definitions and the menu contains links to related articles that are a great aid in one's studies.
Neon Menu
- Neon Page One
- Neon Page Two
Overview of Neon
- Atomic Number: 10
- Group: 18
- Period: 2
- Series: Noble Gasses
Neon's Name in Other Languages
- Latin: Neon
- Czech: Neon
- Croatian: Neon
- French: Neon
- German: Neon - r
- Italian: Neo
- Norwegian: Neon
- Portuguese: Neônio
- Russian: Неон
- Spanish: Neón
- Swedish: Neon
Atomic Structure of Neon
- Atomic Radius: 0.51Å
- Atomic Volume: 16.7cm3/mol
- Covalent Radius: 0.71Å
- Cross Section (Thermal Neutron Capture) σa/barns: 0.04
- Crystal Structure: Cubic face centered
- Electron Configuration:
- 1s2 2s2p6
- Electrons per Energy Level: 2,8
- Shell Model
- Shell Model
- Ionic Radius:
- Filling Orbital: 2p6
- Number of Electrons (with no charge): 10
- Number of Neutrons (most common/stable nuclide): 10
- Number of Protons: 10
- Oxidation States: 0
- Valence Electrons: 2s2p6
- Electron Dot Model
- Electron Dot Model
Chemical Properties of Neon
- Electrochemical Equivalent:
- Electron Work Function:
- Electronegativity: N/A (Pauling); 4.84 (Allrod Rochow)
- Heat of Fusion: 0.3317kJ/mol
- Incompatibilities:
- Ionization Potential
- First: 21.564
- Second: 40.962
- Third: 63.45
- Valence Electron Potential (-eV):
Physical Properties of Neon
The Atomic Number Of Neon Is 10. Therefore It
- Atomic Mass Average: 20.1797
- Boiling Point: 27.246K -245.904°C -410.6°F
- Coefficient of lineal thermal expansion/K-1: N/A
- Conductivity
- Electrical:
Thermal: 0.000493 W/cmK
- Electrical:
- Density: 0.9g/L @ 273K & 1atm
- Description:
- Colorless, odorless, tasteless noble gas.
- Enthalpy of Fusion: 0.33 kJ/mole
- Enthalpy of Vaporization: 1.71 kJ/mole
- Flammablity Class:
- Freezing Point:see melting point
- Heat of Vaporization: 1.7326kJ/mol
- Melting Point: 24.703K -248.447°C -415.205°F
- Molar Volume: 16.8 cm3/mole
- Optical Refractive Index: 1.000067
- Physical State (at 20°C & 1atm): Gas
- Specific Heat: 0.904J/gK
Regulatory / Health
- CAS Number
- 7440-01-9
- OSHAPermissible Exposure Limit (PEL)
- No limits set by OSHA
- OSHA PEL Vacated 1989
- No limits set by OSHA
- NIOSHRecommended Exposure Limit (REL)
- No limits set by NIOSH
- Levels In Humans:
Note: this data represents naturally occuring levels of elements in the typical human, it DOES NOT represent recommended daily allowances.- Blood/mg dm-3: trace
- Bone/p.p.m: nil
- Liver/p.p.m: nil
- Muscle/p.p.m: nil
- Daily Dietary Intake: n/a
- Total Mass In Avg. 70kg human: n/a
- Discovery Year: 1898
- Name Origin:
- Greek: neos (new).
- Abundance of Neon:
- Earth's Crust/p.p.m.: 0.00007
- Seawater/p.p.m.: 0.0002
- Atmosphere/p.p.m.: 18
- Sun (Relative to H=1E12): 3.72E+07
- Sources of Neon:
- It can be prepared by liquification of air and separated from other elements by fractional distillation. Annual world production is around 1 ton.
- Uses of Neon:
- In a vacuum tube, neon glows reddish orange, thus, the invention of the neon lights. Neon has also been used to make lightening arrestors, voltage detectors and TV tubes.
- Additional Notes:
- While it is inert, there have been reports of it combining with fluorine. Neon may also form ions in combination with other noble gases (NeAr, HeNe, Ne2 and with hydrogen (NeH). It also forms an unstable hydrate, so it is not nearly as inert as one might think.
Neon Menu
- Neon Page One
- Neon Page Two
References
A list of reference sources used to compile the data provided on our periodic table of elements can be found on the main periodic table page.
Related Resources
- Anatomy of the Atom
Answers many questions regarding the structure of atoms. - Molarity, Molality and Normality
Introduces stoichiometry and explains the differences between molarity, molality and normality. - Molar Mass Calculations and Javascript Calculator
Molar mass calculations are explained and there is a JavaScript calculator to aid calculations. - Chemical Database
This database focuses on the most common chemical compounds used in the home and industry.
Citing this page
If you need to cite this page, you can copy this text:
Kenneth Barbalace. Periodic Table of Elements - Neon - Ne. EnvironmentalChemistry.com. 1995 - 2021. Accessed on-line: 4/24/2021
https://EnvironmentalChemistry.com/yogi/periodic/Ne.html
.
Linking to this page
Atomic Number Of Neon 21
If you would like to link to this page from your website, blog, etc., copy and paste this link code (in red) and modify it to suit your needs:
<a href='https://EnvironmentalChemistry.com/yogi/periodic/Ne.html'>echo Periodic Table of Elements: Neon - Ne (EnvironmentalChemistry.com)</a>- Comprehensive information for the element Neon - Ne is provided by this page including scores of properties, element names in many languages, most known nuclides and technical terms are linked to their definitions.
.
NOTICE: While linking to articles is encouraged, OUR ARTICLES MAY NOT BE COPIED TO OR REPUBLISHED ON ANOTHER WEBSITE UNDER ANY CIRCUMSTANCES.
The Atomic Number Of Neon
PLEASE, if you like an article we published simply link to it on our website do not republish it.