Cobalt: ke revisions ke biich ke antar
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[[File:Cobalt-3.jpg|thumb|Sheet of cobalt metal]]▼
'''Cobalt''' ([[chemical symbol]] '''Co''') ek [[chemical element]] hae jiske [[atomic number]] 27 aur [[atomic mass]] 59 hae. Ii ek[[metal]] hae.
==Properties==
[[File:Cobalt(II)-chloride-hexahydrate-sample.jpg|thumb|Cobalt(II) chloride with water]]▼
[[File:Cobalt(II) chloride.jpg|left|thumb|Cobalt(II) chloride without water]]▼
Cobalt ek [[transition metal]] hae. Ii chamke hae aur electricity conduct kare hae. Ii ek [[magnet]]ic, hard metal hae. Isse jaada reactive Isse jaada reactive [[Iron]] aur [[copper]] kamti reactive hae.
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<gallery>
Image:Cobalt-cathode.jpg|Elemental cobalt
Image:Cobalt OreUSGOV.jpg|Cobalt ore
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