ഫലകം:Infobox calcium
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വസ്തുതകൾ Calcium, Appearance ...
Calcium | |||||||||||||||
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Appearance | dull gray, silver; with a pale yellow tint[1] | ||||||||||||||
Calcium ആവർത്തനപ്പട്ടികയിൽ | |||||||||||||||
ഗ്രൂപ്പ് | group 2 (alkaline earth metals) | ||||||||||||||
പിരീഡ് | period 4 | ||||||||||||||
ബ്ലോക്ക് | s-block | ||||||||||||||
ഇലക്ട്രോൺ വിന്യാസം | [Ar] 4s2 | ||||||||||||||
Electrons per shell | 2, 8, 8, 2 | ||||||||||||||
Physical properties | |||||||||||||||
Phase at STP | solid | ||||||||||||||
ദ്രവണാങ്കം | 1115 K (842 °C, 1548 °F) | ||||||||||||||
ക്വഥനാങ്കം | 1757 K (1484 °C, 2703 °F) | ||||||||||||||
Density (near r.t.) | 1.55 g/cm3 | ||||||||||||||
when liquid (at m.p.) | 1.378 g/cm3 | ||||||||||||||
ദ്രവീകരണ ലീനതാപം | 8.54 kJ/mol | ||||||||||||||
Heat of vaporization | 154.7 kJ/mol | ||||||||||||||
Molar heat capacity | 25.929 J/(mol·K) | ||||||||||||||
Vapor pressure
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Atomic properties | |||||||||||||||
Oxidation states | +1,[2] +2 (a strongly basic oxide) | ||||||||||||||
Electronegativity | Pauling scale: 1.00 | ||||||||||||||
അയോണീകരണ ഊർജം |
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ആറ്റോമിക ആരം | empirical: 197 pm | ||||||||||||||
കൊവാലന്റ് റേഡിയസ് | 176±10 pm | ||||||||||||||
Van der Waals radius | 231 pm | ||||||||||||||
Spectral lines of calcium | |||||||||||||||
Other properties | |||||||||||||||
Natural occurrence | primordial | ||||||||||||||
ക്രിസ്റ്റൽ ഘടന | face-centered cubic (fcc) | ||||||||||||||
Speed of sound thin rod | 3810 m/s (at 20 °C) | ||||||||||||||
Thermal expansion | 22.3 µm/(m⋅K) (at 25 °C) | ||||||||||||||
താപചാലകത | 201 W/(m⋅K) | ||||||||||||||
Electrical resistivity | 33.6 nΩ⋅m (at 20 °C) | ||||||||||||||
കാന്തികത | diamagnetic | ||||||||||||||
കാന്തികക്ഷമത | +40.0·10−6 cm3/mol[3] | ||||||||||||||
Young's modulus | 20 GPa | ||||||||||||||
Shear modulus | 7.4 GPa | ||||||||||||||
ബൾക്ക് മോഡുലസ് | 17 GPa | ||||||||||||||
Poisson ratio | 0.31 | ||||||||||||||
Mohs hardness | 1.75 | ||||||||||||||
Brinell hardness | 170–416 MPa | ||||||||||||||
സി.എ.എസ് നമ്പർ | 7440-70-2 | ||||||||||||||
History | |||||||||||||||
Discovery and first isolation | Humphry Davy (1808) | ||||||||||||||
Isotopes of calcium കാ • [{{fullurl:Template:{{{template}}}|action=edit}} തി] | |||||||||||||||
Template:infobox calcium isotopes does not exist | |||||||||||||||
വർഗ്ഗം: Calcium | references |
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കൂടുതൽ വിവരങ്ങൾ Ca · Calcium ...
Ca · Calcium | ||
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Standard atomic weight | |
most stable isotope | |
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Spectral lines image |
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