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  • Calcium was discovered by Sir Humphrey Davy in 1808.
    632 bytes (9 words) - 01:00, 3 February 2016
  • may have superconducting properties. Calcium intercalated graphite (CaC6) is graphene coated with a calcium atom also with near superconductive properties
    5 KB (733 words) - 04:14, 2 July 2014
  • "Some observations show that Mercury is surrounded by a hot corona of calcium atoms with temperature between 12,000 and 20,000 K." At right is a diagram
    102 KB (11,739 words) - 04:14, 3 February 2016
  • "Some observations show that Mercury is surrounded by a hot corona of calcium atoms with temperature between 12,000 and 20,000 K." At right is a diagram
    101 KB (12,355 words) - 04:32, 3 February 2016
  • Carbonate into Calcium Oxide and Carbon Dioxide gas: CaCO3 → CaO + CO2 Single replacement reactions involve the replacement of one atom in a compound by
    2 KB (279 words) - 06:13, 6 May 2015
  • Ionic bonding occurs when an atom or molecule completely transfers electrons to another atom or molecule. This happens because the valence electron of
    5 KB (786 words) - 21:40, 5 February 2014
  • to solar prominences. Gold "nuclei (the positively charged part of the atom made of protons and neutrons) [are] sent speeding around [the Relativistic
    38 KB (3,847 words) - 04:15, 3 February 2016
  • what chemical property? 6. Complete the text: 7. True or False, An atom of hydrogen bearing a negative electrical charge is an ion. 8. When plasma
    14 KB (1,264 words) - 03:04, 1 February 2016
  • "Hibonite (CaAl12O19) and calcium dialuminate (Ca Al4O7) are among the most refractory minerals observed in calcium-, aluminum-rich inclusions (CAIs)
    21 KB (2,271 words) - 02:32, 1 February 2016
  • muons) of 36Cl due to potassium and calcium, respectively; and are the elemental concentrations of potassium and calcium, respectively; and is the thermal
    44 KB (4,573 words) - 04:00, 30 January 2016
  • -183 degrees Celsius and its melting point is at -210 degrees Celsius. Calcium on the other hand has a boiling point of 1484 degrees Celsius and its melting
    4 KB (791 words) - 09:33, 17 September 2015
  • dolomite. Calcite on the right is a common calcium carbonate mineral that occurs in orange. For its calcium content it is an alkaline earth mineral, for
    107 KB (9,416 words) - 02:37, 1 February 2016
  • satellite bands are caused by those lithium atoms which undergo an optical transition while a helium atom is nearby." "In the other series of glasses
    10 KB (1,248 words) - 00:26, 1 February 2016
  • table, including silicon, oxygen, iron, magnesium, potassium, aluminum, calcium, sulfur, and carbon." "[T]he chemical element thorium [is] mapped [by a
    100 KB (10,943 words) - 03:04, 1 February 2016
  • occur on the surface of the Earth as native potassium, in abernathyite, the atom of potassium links to oxygens from all three oxides. Hydroxide minerals
    13 KB (1,216 words) - 02:33, 1 February 2016
  • as garnet or olivine, in which the SiO4 tetrahedra do not share oxygen atoms with each other" is called an orthosilicate. Def. any group of silicates
    66 KB (6,164 words) - 02:32, 1 February 2016
  • plasmas: 333.613, 334.472, 335.211, 335.849, and 336.128 nm from Ar III. The calcium line Ca XII at 332.8 nm occurs in the solar corona. Chromium has several
    115 KB (12,660 words) - 03:18, 1 February 2016
  • potassium, calcium and barium" is called feldspar. Def. "[a]ny of a group of aluminum silicate feldspathic minerals ranging in their ratio of calcium to sodium"
    141 KB (14,120 words) - 04:21, 3 February 2016
  • or False, Curium is an actinide element. 33. Uranophane is a rare calcium uranium 34. True or False, Berkelium is an actinide element. 35
    13 KB (1,191 words) - 02:36, 1 February 2016
  • or False, Curium is an actinide element. 33. Uranophane is a rare calcium uranium 34. True or False, Berkelium is an actinide element. 35
    15 KB (1,320 words) - 02:37, 1 February 2016

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