[Malki Morad Herdan]

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الأخت جورجيت
أحيي فيك روح المعرفة هذه، و إليك بعض خصائص الرادون Radon:


86

RADON

RADON
[222]

The essentials
Name: radon
Symbol: Rn
Atomic number: 86
Atomic weight: [ 222 ]
CAS Registry ID: 10043-92-2

Group number: 18
Group name: Noble gas
Period number: 6
Block: p-block

Standard state: gas at 298 K (the heaviest known mononuclear gas at 298 K)
Colour: colourless
Classification: Non-metallic

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