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Atomic weight | Atomic volume | discovered | state (s, l, g) | melting point | boiling point | electronegativity | electron affinity | Shells | electron configuration | structure | uses | toxicity | hardness | characteristics | reaction with air | number of isotopes | hydride(s) | oxide(s) | chloride(s) | image | thermal conductivity | electrical conductivity | polarizability | source | abundance earth's crust | cost, pure | cost, bulk | rel. abund. solar system | Density @ 293 K |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Boron(B) | 10.81 | 4.6 (cm3/mol) | 11/30/1807 | s | 2,352.2 (K) | 3,923.2 (K) | 2.04 | 26.7 (kJ/mole) | 2,3 | [He] 2s2 2p1 | special: B12 icosahedra | borax, glass making(B2O3) | ... | 9.5 (mohs) | B12 icosahedra; 3 forms | mild, w/ht =>B2O3 | 2 | B2H6 and many BxHy | B2O3 | BCl3 and many BxCly |  | 27.4 J/m-sec-deg | 0 1/mohm-cm | 3 (A^3) | Na and Ca borates (misc) | 1 (log) | 250 $/100g | $/100g | 1 (1) | 2 (2) |
| Hydrogen(H) | 1.008 | 14.4 (cm3/mol) | 11/30/1765 | g | 14.06 (K) | 20.4 (K) | 2.2 | 72.771 (kJ/mole) | 1 | 1s1 | hcp: hexagonal close pkd | rocket fuel | ... | ... | ... | vigorous, =>H2O | 3 | H2 | H2O | HCl |  | 0.18 J/m-sec-deg | 1/mohm-cm | .7 (A^3) | Water, methane | 3.1 (log) | 12 $/100g | $/100g | 1 (1) | 0 |
| Nitrogen(N) | 14.007 | 17.3 (cm3/mol) | 11/30/1771 | g | 63.34 (K) | 77.4 (K) | 3.04 | -6.75 (kJ/mole) | 2,5 | [He] 2s2 2p3 | ... | fertilizer, cryogenics | no | ... | diatomic(N2) | none | 2 | NH3 N2H4 HN3 | N2O NO NO2 N2O5 | NCl3 |  | 0.03 J/m-sec-deg | 0 1/mohm-cm | 1.1 (A^3) | Air | 1.3 (log) | 0.4 $/100g | $/100g | 6 (6) | 0 |
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