Kripto (Kr)

General Properties

Symbol Kr
Atomic Number 36
Atomic Weight 83.798
Group
18 (noble gases or helium family/neon family)
VIII (IUPAC), VIIIA (CAS)
Gas, Diamagnetic, Noble Gas, Nonmetal, Stable, Natural
Period 4
Block p

Physical Properties

Density 0.00374 g/cm3
Atomic Volume 32.2 cm3/mole
Atomic Radius 1.03 angstroms
Covalent Radius 110 pm
Crust Abundance 1.5E-8%
Crystal Structure Cubic: Face centered
Color Colorless

Energy

Electronegativity 3.0 (Pauling Scale)
Electron Affinity 0 kJ/mol
1st Ionization Energy 1356 kJ/mol
2º Ionization Energy 2350.4 kJ/mol
3º Ionization Energy 3565 kJ/mol
4º Ionization Energy 5070 kJ/mol
5º Ionization Energy 6240 kJ/mol
6º Ionization Energy 7570 kJ/mol
7º Ionization Energy 10710 kJ/mol
8º Ionization Energy 12138 kJ/mol
9º Ionization Energy 22274 kJ/mol
10º Ionization Energy 25880 kJ/mol
11º Ionization Energy 29700 kJ/mol
12º Ionization Energy 33800 kJ/mol
13º Ionization Energy 37700 kJ/mol
14º Ionization Energy 43100 kJ/mol
15º Ionization Energy 47500 kJ/mol
16º Ionization Energy 52200 kJ/mol
17º Ionization Energy 57100 kJ/mol
18º Ionization Energy 61800 kJ/mol
19º Ionization Energy 75800 kJ/mol
20º Ionization Energy 80400 kJ/mol
21º Ionization Energy 85300 kJ/mol
22º Ionization Energy 90400 kJ/mol
23º Ionization Energy 96300 kJ/mol
24º Ionization Energy 101400 kJ/mol
25º Ionization Energy 111100 kJ/mol
26º Ionization Energy 116290 kJ/mol
27º Ionization Energy 282500 kJ/mol
28º Ionization Energy 296200 kJ/mol
29º Ionization Energy 311400 kJ/mol
30º Ionization Energy 326200 kJ/mol
Specific Heat Capacity 0.248 J g−1 K−1
Thermal Conductivity 0.00949 W·m−1·K−1

Electrons & Oxidation

Oxidation States 0
Electrons Per Shell 2 8 18 8
Electron Configuration [Ar] 3d10 4s2 4p6
1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6
Orbital Diagram
1s
↿⇂
2s
↿⇂
2p
↿⇂
↿⇂
↿⇂
3s
↿⇂
3p
↿⇂
↿⇂
↿⇂
3d
↿⇂
↿⇂
↿⇂
↿⇂
↿⇂
4s
↿⇂
4p
↿⇂
↿⇂
↿⇂
4d
 
 
 
 
 
4f
 
 
 
 
 
 
 

Nuclear

Radioactive No

Media

Planetary Bohr Model of Kripto (Kr)
Lewis Dot Diagram of Kripto (Kr)
Description
Colorless, odorless, tasteless rare noble gas.
Uses
Used in lighting products. Some is used as inert filler-gas in incandescent bulbs. Some is mixed with argon in fluorescent lamps. The most important use is in flashing stroboscopic lamps that outline airport runways.
Sources
Forms 1 millionth of the atmosphere. Obtained from production of liquid air.
Pronounciation (English)
KRIP-ton

Translations

Afrikaans Kripton
Aragonese Criptón
العربية كربتون
Armãneashte Cripton
asturianu Criptón
azərbaycan dili Kripton
български Криптон
বাংলা ক্রিপ্টন
brezhoneg Kripton
bosanski Kripton
Byelorussian Крыптон
Cebuano Kripton
čeština Krypton
Chuvash Криптон
Cymraeg Criptó
dansk Krypton
Deutsch Krypton
Ελληνικά Κρυπτο
English Krypton
esperanto Kriptono
español Criptón
eesti Krüptoon
euskara Kriptona
فارسی کریپتون
suomi Krypton
føroyskt Krypton
français Krypton
furlan Criton
West-Frysk Krypton
Gaeilge Crioptón
Gàidhlig Criopton
galego Cripton
ગુજરાતી ક્રિપ્ટૉનનો
Gaelg Krypton
Hakka Chinese Khiet (氪)
עברית קריפטון
हिन्दी क्रिप्टन
hrvatski Kripton
magyar Kripton
հայերեն Կրիպտոն
Indonesia Kripton
íslenska Krypton
italiano Kripto
日本語 クリプトン
ქართული კრიპტონი
کٲشُر Kriptón
қазақ тілі Криптон
한국어 크립톤
Kurdish Kripton
Komi Криптон
kernewek Crypton
кыргызча Криптон
Latin Krypton
Lëtzebuergesch Krypton
Lombard Cript
lingála Kliptoni
lietuvių Kriptonas
latviešu Kriptons
Mari Криптон
Maori Krypton
македонски Криптон
മലയാളം ക്രിപ്റ്റോണ്‍
монгол Криптон
Мокшан Криптон
Bahasa Melayu Kripton
Malti Kripton
Nahuatl Kriptón
Nederlands Krypton
norsk Krypton
Occitan Cripton
ирон Криптон
polski Krypton
português Krípton
Runasimi Kriptun
română Kripton
русский Криптон
slovenčina Kryptón
slovenščina Kripton
Samoan Kryptoni
Samogitian Kriptuons
shqip Kripton, ²Kryptoni
српски Криптон
Southern Sotho Kriptone
svenska Krypton
Kiswahili Kriptoni
தமிழ் கிரிப்டோன்
Tajik Криптон
ไทย คริปทอน
Türkçe Kripton
ئۇيغۇرچە كرىپتون
українська Криптон
o‘zbek Kripton
Tiếng Việt Kripton
Võro Krüptoon
中文

History

Discovered In
1898
Discovered By
Sir William Ramsay, Morris W. Travers
Discovered At
Great Britain
Word Origin
From the Greek word "kryptos" meaning "hidden"