Periodic Table Element Comparison: Compare Elements - Lithium vs Arsenic
Compare Lithium and Arsenic
Compare Lithium and Arsenic on the basis of their properties, attributes and periodic table facts. Compare elements on more than 90 properties. All the elements of similar categories show a lot of similarities and differences in their chemical, atomic, physical properties and uses. These similarities and dissimilarities should be known while we study periodic table elements. You can study the detailed comparison between Lithium vs Arsenic with most reliable information about their properties, attributes, facts, uses etc. You can compare Li vs As on more than 90 properties like electronegativity , oxidation state, atomic shells, orbital structure, Electronaffinity, physical states, electrical conductivity and many more.
Facts
Name | Lithium | Arsenic |
Atomic Number | 3 | 33 |
Atomic Symbol | Li | As |
Atomic Weight | 6.941 | 74.9216 |
Phase at STP | Solid | Solid |
Color | Silver | Silver |
Metallic Classification | Alkali Metal | Metalloid |
Group in Periodic Table | group 1 | group 15 |
Group Name | lithium family | nitrogen family |
Period in Periodic Table | period 2 | period 4 |
Block in Periodic Table | s -block | p -block |
Electronic Configuration | [He] 2s1 | [Ar] 3d10 4s2 4p3 |
Electronic Shell Structure (Electrons per shell) | 2, 1 | 2, 8, 18, 5 |
Melting Point | 453.69 K | 1090 K |
Boiling Point | 1615 K | 887 K |
CAS Number | CAS7439-93-2 | CAS7440-38-2 |
Neighborhood Elements | Neighborhood Elements of Lithium | Neighborhood Elements of Arsenic |
History
History | The element Lithium was discovered by A. Arfwedson in year 1817 in Sweden. Lithium derived its name the Greek word lithos, meaning 'stone'. | The element Arsenic was discovered by Arabic alchemist in year ca. 800 AD. Arsenic derived its name English word (Latin arsenicum). |
Discovery | A. Arfwedson (1817) | Arabic alchemist (ca. 800 AD) |
Isolated | W. T. Brande (1821) | () |
Presence: Abundance in Nature and Around Us
Parts per billion (ppb) by weight / by atoms (1ppb =10^-7 %)
Abundance in Universe | 6 / 1 | 8 / 0.1 |
Abundance in Sun | 0.06 / 0.01 | - / - |
Abundance in Meteorites | 1700 / 4600 | 1800 / 460 |
Abundance in Earth's Crust | 17000 / 50000 | 2100 / 580 |
Abundance in Oceans | 180 / 160 | 2.3 / 0.19 |
Abundance in Humans | 30 / 27 | 50 / 4 |
Crystal Structure and Atomic Structure
Atomic Volume | 13.02 cm3/mol | 12.95 cm3/mol |
Atomic Radius | 167 pm | 114 pm |
Covalent Radius | 134 pm | 119 pm |
Van der Waals Radius | 182 pm | 185 pm |
Atomic Spectrum | ![]() | ![]() |
Lattice Constant | 351, 351, 351 pm | 375.98, 375.98, 1054.75 pm |
Lattice Angle | π/2, π/2, π/2 | π/2, π/2, 2 π/3 |
Space Group Name | Im_ 3m | R_ 3m |
Space Group Number | 229 | 166 |
Crystal Structure | Body Centered Cubic ![]() | Simple Trigonal ![]() |
Atomic and Orbital Properties
Atomic Number | 3 | 33 |
Number of Electrons (with no charge) | 3 | 33 |
Number of Protons | 3 | 33 |
Mass Number | 6.941 | 74.9216 |
Number of Neutrons | 4 | 42 |
Shell structure (Electrons per energy level) | 2, 1 | 2, 8, 18, 5 |
Electron Configuration | [He] 2s1 | [Ar] 3d10 4s2 4p3 |
Valence Electrons | 2s1 | 4s2 4p3 |
Oxidation State | 1 | -3, 3, 5 |
Atomic Term Symbol (Quantum Numbers) | 2S1/2 | 4S3/2 |
Shell structure | ![]() | ![]() |
Isotopes and Nuclear Properties
Lithium has 2 stable naturally occuring isotopes while Arsenic has 1 stable naturally occuring isotopes.
Known Isotopes | 3Li, 4Li, 5Li, 6Li, 7Li, 8Li, 9Li, 10Li, 11Li, 12Li | 60As, 61As, 62As, 63As, 64As, 65As, 66As, 67As, 68As, 69As, 70As, 71As, 72As, 73As, 74As, 75As, 76As, 77As, 78As, 79As, 80As, 81As, 82As, 83As, 84As, 85As, 86As, 87As, 88As, 89As, 90As, 91As, 92As |
Stable Isotopes | Naturally occurring stable isotopes: 6Li, 7Li | Naturally occurring stable isotopes: 75As |
Neutron Cross Section | 0.045 | 4.3 |
Neutron Mass Absorption | - | 0.002 |
Chemical Properties: Ionization Energies and electron affinity
Valence or Valency | 1 | 5 |
Electronegativity | 0.98 Pauling Scale | 2.18 Pauling Scale |
Electron Affinity | 59.6 kJ/mol | 78 kJ/mol |
Ionization Energies | 1st: 520.2 kJ/mol 2nd: 7298.1 kJ/mol 3rd: 11815 kJ/mol | 1st: 947 kJ/mol 2nd: 1798 kJ/mol 3rd: 2735 kJ/mol 4th: 4837 kJ/mol 5th: 6043 kJ/mol 6th: 12310 kJ/mol |
Physical Properties
Density | 0.535 g/cm3 | 5.727 g/cm3 |
Molar Volume | 13.02 cm3/mol | 12.95 cm3/mol |
Elastic Properties | ||
Young Modulus | 4.9 | 8 |
Shear Modulus | 4.2 GPa | - |
Bulk Modulus | 11 GPa | 22 GPa |
Poisson Ratio | - | - |
Hardness - Tests to Measure of Hardness of Element | ||
Mohs Hardness | 0.6 MPa | 3.5 MPa |
Vickers Hardness | - | - |
Brinell Hardness | - | 1440 MPa |
Electrical Properties | ||
Electrical Conductivity | 11000000 S/m | 3300000 S/m |
Resistivity | 9.4e-8 m Ω | 3e-7 m Ω |
Superconducting Point | - | - |
Heat and Conduction Properties | ||
Thermal Conductivity | 85 W/(m K) | 50 W/(m K) |
Thermal Expansion | 0.000046 /K | - |
Magnetic Properties | ||
Magnetic Type | Paramagnetic | Diamagnetic |
Curie Point | - | - |
Mass Magnetic Susceptibility | 2.56e-8 m3/kg | -3.9e-9 m3/kg |
Molar Magnetic Susceptibility | 1.78e-10 m3/mol | -2.92e-10 m3/mol |
Volume Magnetic Susceptibility | 0.00000137 | -0.0000223 |
Optical Properties | ||
Refractive Index | - | 1.001552 |
Acoustic Properties | ||
Speed of Sound | 6000 m/s | - |
Thermal Properties - Enthalpies and thermodynamics
Melting Point | 453.69 K | 1090 K |
Boiling Point | 1615 K | 887 K |
Critical Temperature | 3223 K | - |
Superconducting Point | - | - |
Enthalpies | ||
Heat of Fusion | 3 kJ/mol | 27.7 kJ/mol |
Heat of Vaporization | 147 kJ/mol | 32.4 kJ/mol |
Heat of Combustion | -298 J/(kg K) | - |
Regulatory and Health - Health and Safety Parameters and Guidelines
CAS Number | CAS7439-93-2 | CAS7440-38-2 |
RTECS Number | RTECSOJ5540000 | {N/A, RTECSCG0525000, N/A} |
DOT Hazard Class | 4.3 | {N/A, 6.1, N/A} |
DOT Numbers | 1415 | {N/A, 1558, N/A} |
EU Number | - | - |
NFPA Fire Rating | 2 | {N/A, 2, N/A} |
NFPA Hazards | Water Reactive | N/ A, N/ A, N/ A |
NFPA Health Rating | 3 | {N/A, 3, N/A} |
NFPA Reactivity Rating | 2 | - |
AutoIgnition Point | 179 °C | - |
Flashpoint | - | - |
Compare With Other Elements
Compare Lithium with all Group 1 elementsLithium vs HydrogenLithium vs SodiumLithium vs PotassiumLithium vs RubidiumLithium vs CesiumLithium vs Francium Compare Lithium with all Period 2 elementsLithium vs BerylliumLithium vs BoronLithium vs CarbonLithium vs NitrogenLithium vs OxygenLithium vs FluorineLithium vs Neon Compare Lithium with all Alkali Metal elements | Compare Arsenic with all Group 15 elementsCompare Arsenic with all Period 4 elementsArsenic vs PotassiumArsenic vs CalciumArsenic vs ScandiumArsenic vs TitaniumArsenic vs VanadiumArsenic vs ChromiumArsenic vs ManganeseArsenic vs IronArsenic vs CobaltArsenic vs NickelArsenic vs CopperArsenic vs ZincArsenic vs GalliumArsenic vs GermaniumArsenic vs SeleniumArsenic vs BromineArsenic vs Krypton Compare Arsenic with all Metalloid elements |