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1. Actinium (7046 bytes)
   26: | 10070 [[kilogram per cubic metre|kg/m³]], n/a
   37: | [[Covalent radius]] || n/a [[picometre|pm]]
   41: | [[Electron configuration]]
   44: | [[electron|e^-]] 's per [[energy level]]
   47: | [[Oxidation state]]s ([[Oxide]]) || 3 (neutral)
2. Lightning (33113 bytes)
   2: ...ple cloud-to-ground and cloud-to-cloud lightning strokes are observed during a night-time thunderstorm...
   6: ...accompanied by the emission of [[light]]. The electricity passing through the discharge channels rapid...
   10: ...into electricity via [[Leyden jar]]s and other instruments, a number of people proposed that small sca...
   12: ... Franklin noticed the loose fibers on the string stretching out; he then brought his hand close enough...
   16: ...riments involving lightning are always risky to extremes, and frequently fatal. The most well known de...
3. Capacitor (29664 bytes)
   2: ...evice, but '''every''' multi-[[conductor]] [[geometry]] has '''capacitance'''.
   7: ...ace of the plates, at the boundary with the dielectric. Because each plate stores an equal but opposi...
   9: ...shown for clarity; in a real capacitor, the dielectric is in direct contact with the plates.)]]
   13: ...nce]] (''C'') is a measure of the amount of [[electric charge|charge]] (''Q'') stored on each plate fo...
   18: ...ivity]] of the [[dielectric]] (that is, non-[[electrical conduction|conducting]]) substance that separ...
4. Electricity (13894 bytes)
   1: ...scussed under [[electrical phenomenon]] and [[electromagnetism]].
   3: ...ample, "''Q'' = 0.5 C" means "the quantity of electric charge is 0.5 coulomb."
   6: ...ty", from the [[Greek language|Greek]] ''ēlektron'' = "[[amber]]", which came from an old [[root ...
   8: ...ve been alleged to be [[battery (electricity)|electrical batteries]].
   10: ... of static electricity was equivalent to an [[electric current]].
5. Antimony (9093 bytes)
   27: | 6697 [[kilogram per cubic metre|kg/m³]], 3
   30: | align="center" | silvery lustrous grey<br />[[Image:Sb,51.jpg|125px|]]
   36: | [[Atomic radius]] (calc.) || 145 (133) [[picometre|pm]]
   42: | [[Electron configuration]]
   45: | [[electron|e^-]] 's per [[energy level]]
6. Arsenic (12497 bytes)
   26: | 5727 [[kilogram per cubic metre|kg/m³]], 3.5
   35: | [[Atomic radius]] (calc.) || 115 (114) [[picometre|pm]]
   41: | [[Electron configuration]]
   44: | [[electron|e^-]] 's per [[energy level]]
   49: | [[Crystal structure]] || rhombohedral
7. Barium (8466 bytes)
   10: | rowspan="3" valign="center" | [[Strontium|Sr]]<br />'''Ba'''<br />[[Radium|Ra]]&nbsp;...
   27: | 3510 [[kilogram per cubic metre|kg/m³]], 1.25
   36: | [[Atomic radius]] (Calc.) || 215 [[picometre|pm]] (253 pm)
   42: | [[Electron configuration]]
   45: | [[electron|e]]^- 's per [[energy level]]
8. Beryllium (15119 bytes)
   26: | 1848 [[kilogram per cubic metre|kg/m³]], 5.5
   37: | [[1 E-10 m|112]] [[picometre|pm]]
   45: | [[Electron configuration]]
   48: | [[electron|e]]^- 's per [[energy level]]
   54: | [[Crystal structure]]
9. Bismuth (9188 bytes)
   28: | 9.78 [[kilogram per cubic metre|g/cm³]], 2.25
   31: | align="center" | lustrous <br />reddish white<br />[[Image:Bi,83.jpg|125...
   39: | 160 (143) [[picometre|pm]]
   47: | [[Electron configuration]]
   50: | [[electron|e^-]] 's per [[energy level]]
10. Bromine (8073 bytes)
    25: | 3119 [[kilogram per cubic metre|kg/m³]] <small>(300 [[Kelvin|K]])</sm...
    36: | 115 (94) [[picometre|pm]]
    44: | [[Electron configuration]]
    47: | [[electron|e^-]] 's per [[energy level]]
    51: | ?1,5 (strong [[acid]])
11. Cadmium (10755 bytes)
    20: | [[Transition metal]]s
    26: | 8650 [[kilogram per cubic metre|kg/m³]], 2
    40: | 148 [[picometre|pm]]
    45: | [[Electron configuration]]
    48: | [[electron|e^-]] 's per [[energy level]]
12. Caesium (11026 bytes)
    23: | 1879 [[kilogram per cubic metre|kg/m³]], 0.2
    34: | 260 (298) [[picometre|pm]]
    42: | [[Electron configuration]]
    45: | [[electron|e^-]] s per [[energy level]]
    49: | 1 (strong [[Base (chemistry)|base]])
13. Calcium (9166 bytes)
    3: <tr><td colspan="2" cellspacing="0" cellpadding="2">
    5: <tr><td colspan="2" align="center">[[potassium]] &nda...
    6: </tr>
    7: ...ontium|Sr]]&nbsp;&nbsp;<br>&nbsp;<br>&nbsp;</td></tr>
    8: <tr><td align="center">[[Image:Ca-TableImage.png]]<br...
14. Cerium (12377 bytes)
    24: | 6689 [[kilogram per cubic metre|kg/m³]], 2.5
    38: | no data [[picometre|pm]]
    43: | [[Electron configuration]]
    46: | [[electron|e^-]] 's per [[energy level]]
    52: | [[Crystal structure]]
15. Chromium (13677 bytes)
    3: <tr><td colspan="2" cellspacing="0" cellpadding="2">
    5: <tr><td colspan="2" align="center">[[vanadium]] &ndas...
    6: </tr>
    7: ...bdenum|Mo]]&nbsp;&nbsp;<br>&nbsp;<br>&nbsp;</td></tr>
    8: <tr><td align="center">[[Image:Cr-TableImage.png]]
16. Cobalt (13481 bytes)
    3: <tr><td colspan="2" cellspacing="0" cellpadding="2">
    5: <tr><td colspan="2" align="center">[[iron]] &ndash; '...
    6: </tr>
    7: ...hodium|Rh]]&nbsp;&nbsp;<br>&nbsp;<br>&nbsp;</td></tr>
    8: <tr><td align="center">[[Image:Co-TableImage.png]]
17. Copper (13595 bytes)
    20: | [[transition metal]]s
    26: | 8920 [[kilogram per cubic metre|kg/m³]], 3.0
    37: | 135 (145) [[picometre|pm]]
    45: | [[Electron configuration]]
    48: | [[electron|e^-]] 's per [[energy level]]
18. Dysprosium (8843 bytes)
    25: | 8551 [[kilogram per cubic metre|kg/m³]], no data
    44: | [[Electron configuration]]
    47: | [[electron|e^-]] 's per [[energy level]]
    51: | 3 (weak [[base (chemistry)|base]])
    53: | [[Crystal structure]]
19. Erbium (9509 bytes)
    25: | 9066 [[kilogram per cubic metre|kg/m³]], ND
    39: | ND [[picometre|pm]]
    44: | [[Electron configuration]]
    47: | [[electron|e^-]] 's per [[energy level]]
    51: | 3 ([[base (chemistry)|basic]])
20. Europium (8579 bytes)
    25: | 5244 [[kilogram per cubic metre|kg/m³]], no data
    44: | [[Electron configuration]]
    47: | [[electron|e^-]]s per [[energy level]]
    53: | [[Crystal structure]]
    68: | 28.97 [[cubic metre per mole|cm³/mol]]

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