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| पंक्ति 1: |
पंक्ति 1: |
| ==पोटेशियम==
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| {{Elementbox
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| |name=पोटेशियम
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| |pronounce=
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| |number=19
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| |symbol=K
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| |left=[[ऑर्गन]]
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| |right=[[कैल्सियम]]
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| |above=[[सोडियम|Na]]
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| |below=[[रुबिडियम|Rb]]
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| |series=क्षार धातु
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| |series comment=
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| |group=1
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| |period=4
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| |block=s
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| |series color=
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| |phase color=
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| |appearance=
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| |image name=
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| |image size=
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| |image name comment=
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| |image name 2=
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| |image name 2 comment=
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| |atomic mass=39.0983
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| |atomic mass 2=1
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| |atomic mass comment=
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| |electron configuration=1s<sup>2</sup>, 2s<sup>2</sup> 2p<sup>6</sup>, 3s<sup>2</sup> 3p<sup>6</sup>,4s<sup>1</sup>
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| |electrons per shell=2, 8, 8, 1
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| |color=
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| |phase=ठोस
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| |phase comment=
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| |density gplstp=
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| |density gpcm3nrt=0.862
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| |density gpcm3nrt 2=
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| |density gpcm3mp=0.828
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| |melting point K=336.53
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| |melting point C=63.38
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| |melting point F=146.08
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| |boiling point K=1032
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| |boiling point C=759
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| |boiling point F=1398
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| |triple point K=336.35
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| |triple point kPa=
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| |critical point K=
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| |critical point MPa=
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| |heat fusion=2.33
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| |heat fusion 2=
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| |heat vaporization=76.9
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| |heat capacity=29.6
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| |vapor pressure 1=
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| |vapor pressure 10=
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| |vapor pressure 100=
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| |vapor pressure 1 k=
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| |vapor pressure 10 k=
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| |vapor pressure 100 k=
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| |vapor pressure comment=
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| |crystal structure=
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| |oxidation states=1
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| |oxidation states comment=
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| |electronegativity=0.82
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| |number of ionization energies=4
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| |1st ionization energy=418.8
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| |2nd ionization energy=3052
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| |3rd ionization energy=4420
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| |atomic radius=227
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| |atomic radius calculated=
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| |covalent radius=203±12
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| |Van der Waals radius=275
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| |magnetic ordering=paramagnetic
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| |electrical resistivity=
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| |electrical resistivity at 0=
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| |electrical resistivity at 20=72 n
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| |thermal conductivity=102.5
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| |thermal conductivity 2=
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| |thermal diffusivity=
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| |thermal expansion=
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| |thermal expansion at 25=83.3
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| |speed of sound=
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| |speed of sound rod at 20=2000
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| |speed of sound rod at r.t.=
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| |Young's modulus=3.53
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| |Shear modulus=1.3
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| |Bulk modulus=3.1
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| |Poisson ratio=
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| |Mohs hardness=0.4
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| |Vickers hardness=
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| |Brinell hardness=0.363
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| |CAS number=7440-09-7
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| |isotopes=
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| {{Elementbox_isotopes_stable | mn=39 | sym=K | na=93.26% | n=20 }}
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| {{Elementbox_isotopes_decay3 | mn=40 | sym=K | na=0.012% | hl=1.248(3)×10<sup>9</sup> y |
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| dm1=β<sup>−</sup> | de1=1.311 | pn1=40 | ps1=[[कैल्सियम|Ca]] |
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| dm2=ε | de2=1.505 | pn2=40 | ps2=[[ऑर्गन|Ar]] |
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| dm3=β<sup>+</sup> | de3=1.505 | pn3=40 | ps3=[[ऑर्गन|Ar]] }}
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| {{Elementbox_isotopes_stable | mn=41 | sym=K | na=6.73% | n=22 }}
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| |isotopes comment=
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| }}
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| ==बाहरी कड़ियाँ==
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| *[http://agropedia.iitk.ac.in/?q=content/%E0%A4%AA%E0%A5%8B%E0%A4%9F%E0%A5%87%E0%A4%B6%E0%A4%BF%E0%A4%AF%E0%A4%AE-%E0%A4%97%E0%A4%A8%E0%A5%8D%E0%A4%A8%E0%A4%BE]
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| *[http://www.lifemojo.com/health-guides/health-tip/%E0%A4%89%E0%A4%9A%E0%A5%8D%E0%A4%9A-%E0%A4%B0%E0%A4%95%E0%A5%8D%E0%A4%A4%E0%A4%9A%E0%A4%BE%E0%A4%AA-%E0%A4%89%E0%A4%AA%E0%A4%BE%E0%A4%AF-%E0%A4%8F%E0%A4%95-%E0%A4%B8%E0%A4%82%E0%A4%A4%E0%A4%B0%E0%A5%87-%E0%A4%9C%E0%A5%88%E0%A4%B8%E0%A5%87-%E0%A4%89%E0%A4%9A%E0%A5%8D%E0%A4%9A-%E0%A4%AA%E0%A5%8B-5036540/hi]
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| *[http://www.news-medical.net/news/20100914/8/Hindi.aspx]
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| *[http://www.jkhealthworld.com/detail.php?id=8408]
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| *[http://healthy-india.org/Hindi/appetizing5.asp]
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| *[http://healthy-india.org/Hindi/appetizing.asp]
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| *[http://www.jkhealthworld.com/detail.php?id=5954]
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