Periodic Table Element Comparison: Compare Elements - Sulfur vs Potassium
Compare Sulfur and Potassium
Compare Sulfur and Potassium 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 Sulfur vs Potassium with most reliable information about their properties, attributes, facts, uses etc. You can compare S vs K on more than 90 properties like electronegativity , oxidation state, atomic shells, orbital structure, Electronaffinity, physical states, electrical conductivity and many more.
Facts
Name | Sulfur | Potassium |
Atomic Number | 16 | 19 |
Atomic Symbol | S | K |
Atomic Weight | 32.065 | 39.0983 |
Phase at STP | Solid | Solid |
Color | Yellow | Silver |
Metallic Classification | Other Nonmetal | Alkali Metal |
Group in Periodic Table | group 16 | group 1 |
Group Name | oxygen family | lithium family |
Period in Periodic Table | period 3 | period 4 |
Block in Periodic Table | p -block | s -block |
Electronic Configuration | [Ne] 3s2 3p4 | [Ar] 4s1 |
Electronic Shell Structure (Electrons per shell) | 2, 8, 6 | 2, 8, 8, 1 |
Melting Point | 388.36 K | 336.53 K |
Boiling Point | 717.87 K | 1032 K |
CAS Number | CAS7704-34-9 | CAS7440-09-7 |
Neighborhood Elements | Neighborhood Elements of Sulfur | Neighborhood Elements of Potassium |
History
Name | Sulfur | Potassium |
History | The element Sulfur was discovered by Chinese/Indians in year Before 2000 BCE. Sulfur derived its name from the Latin word sulphur, 'fire and brimstone'. | The element Potassium was discovered by H. Davy in year 1807 in United Kingdom. Potassium derived its name from New Latin potassa, 'potash' (kalium in Latin). |
Discovery | Chinese/Indians (Before 2000 BCE) | H. Davy (1807) |
Isolated | () | H. Davy (1807) |
Presence: Abundance in Nature and Around Us
Parts per billion (ppb) by weight / by atoms (1ppb =10^-7 %)
Name | Sulfur | Potassium |
Abundance in Universe | 500000 / 20000 | 3000 / 100 |
Abundance in Sun | 400000 / 10000 | 4000 / 100 |
Abundance in Meteorites | 41000000 / 22000000 | 710000 / 370000 |
Abundance in Earth's Crust | 420000 / 270000 | 15000000 / 7800000 |
Abundance in Oceans | 928000 / 179000 | 416000 / 65800 |
Abundance in Humans | 2000000 / 390000 | 2000000 / 320000 |
Crystal Structure and Atomic Structure
Name | Sulfur | Potassium |
Atomic Volume | 15.53 cm3/mol | 45.68 cm3/mol |
Atomic Radius | 88 pm | 243 pm |
Covalent Radius | 102 pm | 196 pm |
Van der Waals Radius | 180 pm | 275 pm |
Atomic Spectrum - Spectral Lines | ||
Emission Spectrum | ||
Absorption Spectrum | ||
Lattice Constant | 1043.7, 1284.5, 2436.9 pm | 532.8, 532.8, 532.8 pm |
Lattice Angle | π/2, π/2, π/2 | π/2, π/2, π/2 |
Space Group Name | Fddd | Im_ 3m |
Space Group Number | 70 | 229 |
Crystal Structure | Face Centered Orthorhombic | Body Centered Cubic |
Atomic and Orbital Properties
Name | Sulfur | Potassium |
Atomic Number | 16 | 19 |
Number of Electrons (with no charge) | 16 | 19 |
Number of Protons | 16 | 19 |
Mass Number | 32.065 | 39.0983 |
Number of Neutrons | 16 | 20 |
Shell structure (Electrons per energy level) | 2, 8, 6 | 2, 8, 8, 1 |
Electron Configuration | [Ne] 3s2 3p4 | [Ar] 4s1 |
Valence Electrons | 3s2 3p4 | 4s1 |
Oxidation State | -2, 2, 4, 6 | 1 |
Atomic Term Symbol (Quantum Numbers) | 3P2 | 2S1/2 |
Shell structure |
Isotopes and Nuclear Properties
Sulfur has 4 stable naturally occuring isotopes while Potassium has 2 stable naturally occuring isotopes.
Name | Sulfur | Potassium |
Known Isotopes | 26S, 27S, 28S, 29S, 30S, 31S, 32S, 33S, 34S, 35S, 36S, 37S, 38S, 39S, 40S, 41S, 42S, 43S, 44S, 45S, 46S, 47S, 48S, 49S | 32K, 33K, 34K, 35K, 36K, 37K, 38K, 39K, 40K, 41K, 42K, 43K, 44K, 45K, 46K, 47K, 48K, 49K, 50K, 51K, 52K, 53K, 54K, 55K |
Stable Isotopes | Naturally occurring stable isotopes: 32S, 33S, 34S, 36S | Naturally occurring stable isotopes: 39K, 41K |
Neutron Cross Section | 0.52 | 2.1 |
Neutron Mass Absorption | 0.00055 | 0.0018 |
Chemical Properties: Ionization Energies and electron affinity
Name | Sulfur | Potassium |
Valence or Valency | 6 | 1 |
Electronegativity | 2.58 Pauling Scale | 0.82 Pauling Scale |
Electron Affinity | 200 kJ/mol | 48.4 kJ/mol |
Ionization Energies | 1st: 999.6 kJ/mol 2nd: 2252 kJ/mol 3rd: 3357 kJ/mol 4th: 4556 kJ/mol 5th: 7004.3 kJ/mol 6th: 8495.8 kJ/mol 7th: 27107 kJ/mol 8th: 31719 kJ/mol 9th: 36621 kJ/mol 10th: 43177 kJ/mol 11th: 48710 kJ/mol 12th: 54460 kJ/mol 13th: 62930 kJ/mol 14th: 68216 kJ/mol 15th: 311048 kJ/mol 16th: 337138 kJ/mol | 1st: 418.8 kJ/mol 2nd: 3052 kJ/mol 3rd: 4420 kJ/mol 4th: 5877 kJ/mol 5th: 7975 kJ/mol 6th: 9590 kJ/mol 7th: 11343 kJ/mol 8th: 14944 kJ/mol 9th: 16963.7 kJ/mol 10th: 48610 kJ/mol 11th: 54490 kJ/mol 12th: 60730 kJ/mol 13th: 68950 kJ/mol 14th: 75900 kJ/mol 15th: 83080 kJ/mol 16th: 93400 kJ/mol 17th: 99710 kJ/mol 18th: 444880 kJ/mol 19th: 476063 kJ/mol |
Physical Properties
Name | Sulfur | Potassium |
Density | 1.96 g/cm3 | 0.856 g/cm3 |
Molar Volume | 15.53 cm3/mol | 45.68 cm3/mol |
Elastic Properties | ||
Young Modulus | - | - |
Shear Modulus | - | 1.3 GPa |
Bulk Modulus | 7.7 GPa | 3.1 GPa |
Poisson Ratio | - | - |
Hardness - Tests to Measure of Hardness of Element | ||
Mohs Hardness | 2 MPa | 0.4 MPa |
Vickers Hardness | - | - |
Brinell Hardness | - | 0.363 MPa |
Electrical Properties | ||
Electrical Conductivity | 1e-15 S/m | 14000000 S/m |
Resistivity | 1000000000000000 m Ω | 7e-8 m Ω |
Superconducting Point | - | - |
Heat and Conduction Properties | ||
Thermal Conductivity | 0.205 W/(m K) | 100 W/(m K) |
Thermal Expansion | - | - |
Magnetic Properties | ||
Magnetic Type | Diamagnetic | Paramagnetic |
Curie Point | - | - |
Mass Magnetic Susceptibility | -6.2e-9 m3/kg | 6.7e-9 m3/kg |
Molar Magnetic Susceptibility | -1.99e-10 m3/mol | 2.62e-10 m3/mol |
Volume Magnetic Susceptibility | -0.0000122 | 0.00000574 |
Optical Properties | ||
Refractive Index | 1.001111 | - |
Acoustic Properties | ||
Speed of Sound | - | 2000 m/s |
Thermal Properties - Enthalpies and thermodynamics
Name | Sulfur | Potassium |
Melting Point | 388.36 K | 336.53 K |
Boiling Point | 717.87 K | 1032 K |
Critical Temperature | 1314 K | 2223 K |
Superconducting Point | - | - |
Enthalpies | ||
Heat of Fusion | 1.73 kJ/mol | 2.33 kJ/mol |
Heat of Vaporization | 9.8 kJ/mol | 76.9 kJ/mol |
Heat of Combustion | - | -182 J/(kg K) |
Regulatory and Health - Health and Safety Parameters and Guidelines
Name | Sulfur | Potassium |
CAS Number | CAS7704-34-9 | CAS7440-09-7 |
RTECS Number | {RTECSWS4250000, N/A, N/A, N/A, N/A, N/A} | RTECSTS6460000 |
DOT Hazard Class | 4.1 | 4.3 |
DOT Numbers | 1350 | 2257 |
EU Number | - | - |
NFPA Fire Rating | - | 3 |
NFPA Health Rating | - | 3 |
NFPA Reactivity Rating | - | 2 |
NFPA Hazards | - | Water Reactive |
AutoIgnition Point | - | 440 °C |
Flashpoint | - | - |
Compare With Other Elements
Compare Sulfur with all Group 16 elementsCompare Sulfur with all Period 3 elementsSulfur vs SodiumSulfur vs MagnesiumSulfur vs AluminiumSulfur vs SiliconSulfur vs PhosphorusSulfur vs ChlorineSulfur vs Argon Compare Sulfur with all Other Nonmetal elements | Compare Potassium with all Group 1 elementsPotassium vs LithiumPotassium vs HydrogenPotassium vs SodiumPotassium vs RubidiumPotassium vs CesiumPotassium vs Francium Compare Potassium with all Period 4 elementsPotassium vs CalciumPotassium vs ScandiumPotassium vs TitaniumPotassium vs VanadiumPotassium vs ChromiumPotassium vs ManganesePotassium vs IronPotassium vs CobaltPotassium vs NickelPotassium vs CopperPotassium vs ZincPotassium vs GalliumPotassium vs GermaniumPotassium vs ArsenicPotassium vs SeleniumPotassium vs BrominePotassium vs Krypton Compare Potassium with all Alkali Metal elements |