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  1. Actinium (7046 bytes)
    20: | [[Chemical series]] || [[Actinide]]s
    25: | [[Density]], [[Mohs hardness scale|Hardness]]
    35: | [[Atomic radius]] (calc.) || [[1 E-_ m|195 (n/a) pm]]
    51: ! colspan="2" bgcolor="#ff99cc" | Physical properties
    63: | [[Heat of vaporization]] || n/a [[kilojoule per mole|kJ/mol]]
  2. Lightning (33113 bytes)
    10: ...truments, a number of people proposed that small scale sparks shared some similarity with lightning. [...
    16: ...ard [[thunder]]. He ran home with his engraver to capture the event for posterity. While the experimen...
    18: ...lin also invented the [[lightning rod]], likely because of the results of his experiment.
    22: ...ually fail to produce enough charge separation to cause lightning.
    24: ...lament grows in length. At the same time, electrical energy stored in the e-field flows radially inwa...
  3. Capacitor (29664 bytes)
    2: ...'every''' multi-[[conductor]] [[geometry]] has '''capacitance'''.
    4: == Physics of the capacitor ==
    7: ...e plates, at the boundary with the dielectric. Because each plate stores an equal but opposite charge...
    9: ...es. (The air gap is shown for clarity; in a real capacitor, the dielectric is in direct contact with ...
    11: === Capacitance ===
  4. Electricity (13894 bytes)
    1: ...e electrical effects are discussed under [[electrical phenomenon]] and [[electromagnetism]].
    6: ...ge|Greek]] ''ēlektron'' = "[[amber]]", which came from an old [[root (linguistics)|root]] ''&#275...
    8: ...been alleged to be [[battery (electricity)|electrical batteries]].
    10: ...[Leyden jar]], a type of [[capacitor]] for electrical energy in large quantities, was invented at [[Le...
    16: ...d by society, in that fundamental units of electrical measurement are named after them.
  5. Antimony (9093 bytes)
    26: | [[Density]], [[Mohs hardness scale|Hardness]]
    36: | [[Atomic radius]] (calc.) || 145 (133) [[picometre|pm]]
    52: ! colspan="2" bgcolor="#cccc99" | Physical properties
    64: | [[Heat of vaporization]] || 77.14 [[kilojoule per mole|kJ/mol]]
    68: | [[Vapor pressure]] || 2.49 E-9 [[Pascal|Pa]] @ 6304 K
  6. Arsenic (12497 bytes)
    25: | [[Density]], [[Mohs hardness scale|Hardness]]
    35: | [[Atomic radius]] (calc.) || 115 (114) [[picometre|pm]]
    51: ! colspan="2" bgcolor="#cccc99" | Physical properties
    63: | [[Heat of vaporization]] || 34.76 [[kilojoule per mole|kJ/mol]]
    67: | [[Vapor pressure]] || __ [[Pascal|Pa]] at __ K
  7. Barium (8466 bytes)
    8: | colspan="2" align="center" | [[Caesium]] – '''Barium''' – [[Lanthanum]]
    26: | [[Density]], [[Mohs hardness scale|Hardness]]
    36: | [[Atomic radius]] (Calc.) || 215 [[picometre|pm]] (253 pm)
    53: ! colspan="2" bgcolor="#FFDEAD" | Physical Properties
    65: | [[Heat of vaporization]] || 142 [[kilojoule per mole|kJ/mol]]
  8. Beryllium (15119 bytes)
    25: | [[Density]], [[Mohs hardness scale|Hardness]]
    57: ! colspan="2" bgcolor="#FFDEAD" | Physical properties
    72: | 292.40 [[kilojoule per mole|kJ/mol]]
    78: | 4180 [[Pascal (unit)|Pa]]
    86: | 1.57 ([[Pauling scale]])
  9. Bismuth (9188 bytes)
    21: | [[Chemical series]]
    27: | [[Density]], [[Mohs hardness scale|Hardness]]
    38: | [[Atomic radius]] (calc.)
    59: ! colspan="2" bgcolor="#cccccc" | Physical properties
    74: | 104.8 [[kilojoule per mole|kJ/mol]]
  10. Bromine (8073 bytes)
    24: | [[Density]], [[Mohs hardness scale|Hardness]]
    35: | [[Atomic radius]] (calc.)
    56: ! colspan="2" bgcolor="#ffff99" | Physical properties
    71: | 15.438 [[kilojoule per mole|kJ/mol]]
    77: | 5800 [[Pascal|Pa]] at 266.1K
  11. Cadmium (10755 bytes)
    5: ...olspan="2" align="center" | [[silver]] – '''cadmium''' – [[indium]]
    17: | Cadmium, Cd, 48
    19: | [[Chemical series]]
    25: | [[Density]], [[Mohs hardness scale|Hardness]]
    36: | [[Atomic radius]] (calc.)
  12. Caesium (11026 bytes)
    4: | colspan="2" align="center" | '''Caesium''' – [[Barium]]
    14: | Caesium, Cs, 55
    22: | [[Density]], [[Mohs hardness scale|Hardness]]
    33: | [[Atomic radius]] (calc.)
    54: ...an="2" align="center" bgcolor="#FF6666" | '''Physical properties'''
  13. Calcium (9166 bytes)
    5: ...r">[[potassium]] &ndash; '''calcium''' &ndash; [[scandium]]</td>
    7: ...owspan="3" valign="center">[[Magnesium|Mg]]<br>'''Ca'''<br>[[Strontium|Sr]]&nbsp;&nbsp;<br>&nbsp;<br>&...
    8: <tr><td align="center">[[Image:Ca-TableImage.png]]<br>
    15: ...t of elements by number|Number]]</td><td>calcium, Ca, 20</td></tr>
    21: <td>[[Density]], [[Mohs hardness scale|Hardness]] </td><td>1550 [[kilogram per cubic...
  14. Cerium (12377 bytes)
    17: | [[Chemical series]]
    23: | [[Density]], [[Mohs hardness scale|Hardness]]
    34: | [[Atomic radius]] (calc.)
    55: ...an="2" align="center" bgcolor="#ffbfff" | '''Physical properties'''
    70: | 414 [[kilojoule per mole|kJ/mol]]
  15. Chromium (13677 bytes)
    16: <td>[[Chemical series]] </td><td>[...
    26: <td>[[Atomic radius]] (calc.) </td><td>[[1 E-10 m|14...
    38: ...span="2" align="center" bgcolor="#ffc0c0">'''Physical properties'''</th></tr>
    48: <td>[[Mohs hardness scale|Hardness]]</td><td>8.5</td></tr>
    54: ...on]] </td><td>344.3 [[kilojoule per mole|kJ/mol]]</td></tr>
  16. Cobalt (13481 bytes)
    16: <td>[[Chemical series]] </td><td>[...
    20: <td>[[Density]], [[Mohs hardness scale|Hardness]] </td><td>8.9 [[kilogram per cubic...
    28: <td>[[Atomic radius]] (calc.) </td><td>[[1 E-10 m|13...
    42: ...span="2" align="center" bgcolor="#ffc0c0">'''Physical properties'''</th></tr>
    51: ...on]] </td><td>376.5 [[kilojoule per mole|kJ/mol]]</td></tr>
  17. Copper (13595 bytes)
    19: | [[Chemical series]]
    25: | [[Density]], [[Mohs hardness scale|Hardness]]
    36: | [[Atomic radius]] (calc.)
    57: ...an="2" align="center" bgcolor="#ffc0c0" | '''Physical properties'''
    72: | 300.3 [[kilojoule per mole|kJ/mol]]
  18. Dysprosium (8843 bytes)
    7: | rowspan="3" valign="center" | '''Dy'''<br />[[Californium|Cf]]&nbsp;&nbsp;<br />&nbsp;<br />&nbsp;
    18: | [[Chemical series]]
    24: | [[Density]], [[Mohs hardness scale|Hardness]]
    35: | [[Atomic radius]] (calc.)
    56: ...an="2" align="center" bgcolor="#ffbfff" | '''Physical properties'''
  19. Erbium (9509 bytes)
    18: | [[Chemical series]]
    24: | [[Density]], [[Mohs hardness scale|Hardness]]
    35: | [[Atomic radius]] (calc.)
    56: ...an="2" align="center" bgcolor="#ffbfff" | '''Physical properties'''
    71: | 261 [[kilojoule per mole|kJ/mol]]
  20. Europium (8579 bytes)
    18: | [[Chemical series]]
    24: | [[Density]], [[Mohs hardness scale|Hardness]]
    35: | [[Atomic radius]] (calc.)
    56: ...an="2" align="center" bgcolor="#ffbfff" | '''Physical properties'''
    71: | 143.5 [[kilojoule per mole|kJ/mol]]

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