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1. Sodalite (4894 bytes)
   27: | Luster|| Dull vitreous to greasy
   31: | [[Pleochroism]]|| None - isotropic
   47: ...[sodalite group]] and together with [[hauyne]], [[nosean]] and [[lazurite]] is a common constituent of...
   49: ...overed in [[1806]] in [[Greenland]], sodalite did not become important as an ornamental stone until [[...
   52: ...]] it may be classed as a [[feldspathoid]]. Well known for its blue colour, sodalite may also be grey,...
2. Americium (6956 bytes)
   31: | [[1 E-25 kg|<nowiki>[243]</nowiki> amu]]
   33: | [[Atomic radius]] (calc.) || [[1 E-10 m|175 pm (no data)]]
   35: | [[Covalent radius]] || no data
   37: | [[van der Waals radius]] || no data
   40: | <nowiki>[</nowiki>[[radon|Rn]]<nowiki>]</nowiki>5f⁷ 7[[s-orbital|s]]²
3. Bismuth (9188 bytes)
   45: | no data
   48: | <nowiki>[</nowiki>[[xenon|Xe]]<nowiki>]</nowiki>4[[f-orbital|f]]¹⁴ 5[[d-orbital|d]...
   124: ! [[half-life]]<br> (not SI)
   126: ... energy|DE]] [[mega|M]][[electron volt|eV]] <br> (not SI)
   143: ...perature and pressure|STP]] are used except where noted.</font>
4. Bromine (8073 bytes)
   28: ...n="center" | Gas: red-brown <br />solid: metallic luster<br />[[Image:Br,35.jpg|125px|]]
   45: | <nowiki>[</nowiki>[[argon|Ar]]<nowiki>]</nowiki>3[[d-block|d]]¹⁰ 4[[s-block|s]]<su...
   59: | Liquid ([[magnetism|nonmagnetic]])
   68: | 19.78 [[scientific notation|&times;]]10^-6 [[cubic metre per ...
   91: | no data
5. Graphite (4209 bytes)
   23: | [[Fracture]]|| Flaky, otherwise rough when not on clevage
   27: | Luster|| Dull metallic, earthy
   31: | [[Pleochroism]]|| None
   48: ...]]s, [[iron]] [[meteorite]]s and [[tourmaline]]s. Notable occurrences include [[New York]] and [[Texas...
   50: ...rlubricity]]. Best field indicators are softness, luster, density and streak.
6. Cerium (12377 bytes)
   35: | [[1 E-_ m|185 (no data) pm]]
   38: | no data [[picometre|pm]]
   41: | no data pm
   44: | <nowiki>[</nowiki>[[xenon|Xe]]<nowiki>]</nowiki>4f¹5d¹6s¹
   67: | 20.69 [[scientific notation|&times;]]10^-6 [[cubic metre per ...
7. Dysprosium (8843 bytes)
   25: ...51 [[kilogram per cubic metre|kg/m³]], no data
   39: | no data
   42: | no data
   45: | <nowiki>[</nowiki>[[Xenon|Xe]]<nowiki>]</nowiki>6[[s-orbital|s]]&sup2;4[[f-orbital|f]]<sup>10...
   59: ...d ([[ferromagnetic]]<BR>under liquid nitrogen,<BR>nonmagnetic at<BR>room temperature)
8. Gadolinium (9860 bytes)
   25: ...01 [[kilogram per cubic metre|kg/m³]], no data
   39: | no data
   42: | no data
   45: | [[Xenon|<nowiki>[Xe]</nowiki>]]6s²5d¹4f⁷
   68: | 19.90 [[scientific notation|&times;]]10^-6 [[cubic metre per ...
9. Germanium (8776 bytes)
   44: | no data
   47: | <nowiki>[</nowiki>[[argon|Ar]]<nowiki>]</nowiki>3d¹⁰ 4s² 4p²
   70: | 13.63 [[scientific notation|&times;]]10^-6 [[cubic metre per ...
   160: ...perature and pressure|STP]] are used except where noted.</font>
   162: ...to [[tin]]. Germanium forms a large number of organometallic compounds and is an important [[semicondu...
10. Holmium (7766 bytes)
    44: | <nowiki>[</nowiki>[[Xenon|Xe]]<nowiki>]</nowiki>6s&sup2;4f¹¹
    67: | 19.01 [[scientific notation|&times;]]10^-6 [[cubic metre per ...
    123: ...perature and pressure|STP]] are used except where noted.</font>
    127: == Notable characteristics ==
    130: ...orm, holmium possesses a metallic, bright silvery luster.
11. Indium (8657 bytes)
    45: | <nowiki>[</nowiki>[[krypton|Kr]]<nowiki>]</nowiki>4[[d-orbital|d]]¹⁰ 5[[s-orbital|s]...
    68: | 15.76 [[scientific notation|&times;]]10^-6 [[cubic metre per ...
    77: | 1.42 [[scientific notation|E]]-17 [[Pascal|Pa]] at 429 K
    131: ...perature and pressure|STP]] are used except where noted.</font>
    135: == Notable characteristics ==
12. Lead (8244 bytes)
    5: == Notable characteristics ==
    6: Lead has a bright luster and is a [[density|dense]], [[ductile]], very sof...
    17: ...ficantly reduced or eliminated the use of lead in nonbattery products, including [[gasoline]], paints,...
    26: ...s reported relative to ²⁰⁴Pb, the only non-radiogenic stable isotope. The ranges of isotopi...
    29: ... pains. The historical use of lead acetate (also known as ''sugar of lead'') by the [[Roman Empire]] a...
13. Neodymium (12345 bytes)
    20: ...00 [[kilogram per cubic metre|kg/m³]], no data</td></tr>
    30: ...nt radius]] </td><td>no data</td></tr>
    32: ...r Waals radius]] </td><td>no data</td></tr>
    34: ...</td><td><nowiki>[</nowiki>[[Xenon|Xe]]<nowiki>]</nowiki>4[[f-orbital|f]]⁴6[[s-orbital|s]]&...
    49: ... </td><td>20.59 [[scientific notation|&times;]]10^-6 [[cubic metre per ...
14. Protactinium (7744 bytes)
    25: ...70 [[kilogram per cubic metre|kg/m³]], no data
    28: | bright, silvery metallic luster
    36: | [[1 E-10 m|180 (no data) pm]]
    39: | no data
    42: | no data
15. Silicon (13233 bytes)
    28: {{Elementbox_magnetic | nonmagnetic }}
    44: ... mainly in the form of [[silicon dioxide]] (also known as silica) and [[silicate]]s (compounds contain...
    46: == Notable characteristics ==
    47: ... of [[nitric acid]] and [[hydrofluoric acid]]) do not affect it. Elemental silicon transmits more than...
    70: ...cond most abundant element. Elemental silicon is not found in nature. It occurs most often as [[oxid...
16. Silver (15157 bytes)
    45: | <nowiki>[</nowiki>[[krypton|Kr]]<nowiki>]</nowiki>4d¹⁰ 5[[s-orbital|s]]¹
    132: ...perature and pressure|STP]] are used except where noted.</font>
    138: == Notable characteristics ==
    140: ...[[coinage metal]] with a brilliant white metallic luster that can take a high degree of [[polishing|polish...
    142: ... state]] of silver is +1; a few +2 compounds are known as well.
17. Tellurium (8984 bytes)
    45: | <nowiki>[</nowiki>[[krypton|Kr]]<nowiki>]</nowiki>4[[d-orbital|d]]¹⁰ 5[[s-orbital|s]...
    59: | Solid ([[magnetism|nonmagnetic]])
    68: | 20.46 [[scientific notation|&times;]]10^-6 [[cubic metre per ...
    138: | >1 [[scientific notation|E]]13 [[year|y]]
    160: | [[xenon|¹²⁸Xe]]
18. Thallium (12570 bytes)
    35: ...</td><td><nowiki>[</nowiki>[[xenon|Xe]]<nowiki>]</nowiki>4[[f-orbital|f]]¹⁴ 5[[d-orbital|d]...
    91: ...perature and pressure|STP]] are used except where noted.</font></th>
    96: == Notable characteristics ==
    97: ...s first exposed to air, thallium has a metallic [[luster]] but quickly tarnishes with a bluish-gray tinge ...
    100: ...ted States]] and many other countries this use is no longer allowed due to safety concerns. Other uses...
19. Thulium (8549 bytes)
    26: ...21 [[kilogram per cubic metre|kg/m³]], no data
    46: | <nowiki>[</nowiki>[[xenon|Xe]]<nowiki>]</nowiki>6[[s-orbital|s]]²4f¹³
    69: | 19.1 [[scientific notation|&times;]]10^-6 [[cubic metre per ...
    153: ...perature and pressure|STP]] are used except where noted.</font>
    155: ...etal]] is easy to work, has a bright silvery-gray luster and can be cut by a knife. It also has some [[cor...
20. Tungsten (13647 bytes)
    43: | no data
    46: | <nowiki>[</nowiki>[[xenon|Xe]]<nowiki>]</nowiki>4[[f-orbital|f]]¹⁴ 5d⁴ ...
    69: | 9.47 [[scientific notation|&times;]]10^-6 [[cubic metre per ...
    132: | colspan="2"| not observed
    138: | colspan="2"| not observed

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