hydrogen vs lithium vs chromium

hydrogen (chemical element) | lithium (chemical element) | chromium (chemical element)

Periodic table location

Images

| hydrogen | lithium | chromium atomic symbol | H | Li | Cr atomic number | 1 | 3 | 24 short electronic configuration | 1s^1 | [He]2s^1 | [Ar]4s^13d^5 Aufbau diagram | 1s | 2s | 3d 4s block | s | s | d group | 1 | 1 | 6 period | 1 | 2 | 4 atomic mass | 1.008 u | 6.94 u | 51.9961 u half-life | (stable) | (stable) | (stable)

| hydrogen | lithium | chromium phase at STP | gas | solid | solid melting point | -259.14 °C | 180.54 °C | 1907 °C boiling point | -252.87 °C | 1342 °C | 2671 °C critical temperature | 32.97 K | 3223 K | critical pressure | 1.293 MPa | 67 MPa | molar heat of fusion | 0.558 kJ/mol | 3 kJ/mol | 20.5 kJ/mol molar heat of vaporization | 0.452 kJ/mol | 147 kJ/mol | 339 kJ/mol specific heat at STP | 14300 J/(kg K) | 3570 J/(kg K) | 448 J/(kg K) adiabatic index | 7/5 | | Néel point | | | 393 K (properties at standard conditions)

| hydrogen | lithium | chromium density | 8.99×10^-5 g/cm^3 | 0.535 g/cm^3 | 7.19 g/cm^3 liquid density | | 0.512 g/cm^3 | 6.3 g/cm^3 molar volume | 11200 cm^3/mol | 13 cm^3/mol | 7.232 cm^3/mol Mohs hardness | | 0.6 (between talc and gypsum) | 8.5 (between topaz and corundum) Vickers hardness | | | 1060 MPa Brinell hardness | | | 1120 MPa bulk modulus | | 11 GPa | 160 GPa shear modulus | | 4.2 GPa | 115 GPa Young's modulus | | 4.9 GPa | 279 GPa Poisson ratio | | | 0.21 ultimate tensile strength | | 15 MPa | refractive index | 1.000132 | | sound speed | 1270 m/s | 6000 m/s | 5940 m/s thermal expansion | | 4.6×10^-5 K^(-1) | 4.9×10^-6 K^(-1) thermal conductivity | 0.1805 W/(m K) | 85 W/(m K) | 94 W/(m K) (properties at standard conditions)

| hydrogen | lithium | chromium electrical type | | conductor | conductor resistivity | | 9.4×10^-8 Ω m (ohm meters) | 1.3×10^-7 Ω m (ohm meters) electrical conductivity | | 1.1×10^7 S/m (siemens per meter) | 7.9×10^6 S/m (siemens per meter) magnetic type | diamagnetic | paramagnetic | antiferromagnetic volume magnetic susceptibility | -2.23×10^-9 | 1.37×10^-5 | 3.177×10^-4 mass magnetic susceptibility | -2.48×10^-8 m^3/kg (cubic meters per kilogram) | 2.56×10^-8 m^3/kg (cubic meters per kilogram) | 4.45×10^-8 m^3/kg (cubic meters per kilogram) molar magnetic susceptibility | -4.999×10^-11 m^3/mol (cubic meters per mole) | 1.78×10^-10 m^3/mol (cubic meters per mole) | 2.314×10^-9 m^3/mol (cubic meters per mole) Néel point | | | 393 K (kelvins) work function | | 2.93 eV (Polycrystalline) | 4.5 eV (Polycrystalline) threshold frequency | | 7.085×10^14 Hz (hertz) | 1.088×10^15 Hz (hertz) color | (colorless) | (silver) | (silver) refractive index | 1.000132 | |

| hydrogen | lithium | chromium valence | 1 | 1 | 6 electronegativity | 2.2 | 0.98 | 1.66 electron affinity | 72.8 kJ/mol (kilojoules per mole) | 59.6 kJ/mol (kilojoules per mole) | 64.3 kJ/mol (kilojoules per mole) first ionization energy | 1312 kJ/mol (kilojoules per mole) | 520.2 kJ/mol (kilojoules per mole) | 652.9 kJ/mol (kilojoules per mole) ionization energies | 1312 kJ/mol | 520.2 kJ/mol | 7298.1 kJ/mol | 11815 kJ/mol | 652.9 kJ/mol | 1590.6 kJ/mol | 2987 kJ/mol | 4743 kJ/mol | 6702 kJ/mol | 8744.9 kJ/mol | 15455 kJ/mol | 17820 kJ/mol | 20190 kJ/mol | 23580 kJ/mol | 26130 kJ/mol | 28750 kJ/mol | 34230 kJ/mol | 37066 kJ/mol | 97510 kJ/mol | 105800 kJ/mol | 114300 kJ/mol | 125300 kJ/mol | 134700 kJ/mol | 144300 kJ/mol | 157700 kJ/mol

Reactivity

| hydrogen | lithium | chromium term symbol | ^2S_(1/2) | ^2S_(1/2) | ^7S_3 atomic radius | 25 pm | 145 pm | 140 pm covalent radius | 31 pm | 128 pm | 139 pm van der Waals radius | 120 pm | 182 pm | (electronic ground state properties)

| hydrogen | lithium | chromium universe abundance | 75 mass% | 6×10^-7 mass% | 0.0015 mass% solar abundance | 75 mass% | 6×10^-9 mass% | 0.002 mass% meteorite abundance | 2.4 mass% | 1.7×10^-4 mass% | 0.3 mass% crust abundance | 0.15 mass% | 0.0017 mass% | 0.014 mass% ocean abundance | 11 mass% | 1.8×10^-5 mass% | 6×10^-8 mass% human abundance | 10 mass% | 3×10^-6 mass% | 3×10^-6 mass% universe molar abundance | 93 mol% | 1×10^-7 mol% | 4×10^-5 mol% solar molar abundance | 93 mol% | 9.9×10^-10 mol% | 4×10^-5 mol% meteorite molar abundance | 17 mol% | 4.6×10^-4 mol% | 0.12 mol% ocean molar abundance | 66 mol% | 1.6×10^-5 mol% | 7.1×10^-9 mol% crust molar abundance | 3.1 mol% | 0.005 mol% | 0.0055 mol% human molar abundance | 62 mol% | 2.7×10^-6 mol% | 4×10^-7 mol%

| hydrogen | lithium | chromium half-life | (stable) | (stable) | (stable) stable isotopes | H-1 (99.985%) | H-2 (1.5×10^-4) | Li-7 (92.41%) | Li-6 (7.59%) | Cr-52 (83.789%) | Cr-53 (9.501%) | Cr-50 (4.345%) | Cr-54 (2.365%) nuclear spin | H-1: 1/2^+ | H-2: 1^+ | H-3: 1/2^+ | H-4: 2^- | H-5: 1/2^+ | H-6: 2^- | H-7: 1/2^+ | Li-4: 2^- | Li-5: 3/2^- | Li-6: 1^+ | Li-7: 3/2^- | Li-8: 2^+ | Li-9: 3/2^- | Li-11: 3/2^- | Cr-42: 0^+ | Cr-43: 3/2^+ | Cr-44: 0^+ | Cr-45: 7/2^- | Cr-46: 0^+ | Cr-47: 3/2^- | Cr-48: 0^+ | Cr-49: 5/2^- | Cr-50: 0^+ | Cr-51: 7/2^- | Cr-52: 0^+ | Cr-53: 3/2^- | Cr-54: 0^+ | Cr-55: 3/2^- | Cr-56: 0^+ | Cr-58: 0^+ | Cr-59: 1/2^- | Cr-60: 0^+ | Cr-61: 5/2^- | Cr-62: 0^+ | Cr-63: 1/2^- | Cr-64: 0^+ | Cr-65: 1/2^- | Cr-66: 0^+ | Cr-67: 1/2^- unstable isotopes | H-3 (12.32 yr) | H-6 (0.29 zs) | H-4 (0.139 zs) | H-5 (0.08 zs) | H-7 (0.023 zs) | Li-8 (839.9 ms) | Li-9 (178.3 ms) | Li-11 (8.59 ms) | Li-12 (10 ns) | Li-10 (2 zs) | Li-5 (0.3 zs) | Li-4 (0.0757 zs) | Cr-51 (27.703 days) | Cr-48 (21.561 h) | Cr-49 (42.33 min) | Cr-56 (5.93 min) | Cr-55 (209.8 s) | Cr-57 (21.1 s) | Cr-58 (7 s) | Cr-60 (570 ms) | Cr-47 (500 ms) | Cr-59 (460 ms) | Cr-61 (270 ms) | Cr-46 (260 ms) | Cr-62 (190 ms) | Cr-63 (129 ms) | Cr-45 (60.9 ms) | Cr-44 (53 ms) | Cr-64 (43 ms) | Cr-65 (27 ms) | Cr-43 (21.6 ms) | Cr-42 (13 ms) | Cr-67 (10 ms) | Cr-66 (10 ms) neutron cross-section | 0.332 b | 71 b | 3.1 b neutron mass absorption | 0.011 m^2/kg | | 0.0021 m^2/kg

| hydrogen | lithium | chromium CAS number | 1333-74-0 | 7439-93-2 | 7440-47-3 PubChem CID number | 783 | 3028194 | 23976