Periodic Table Element Comparison: Compare Elements - Helium vs Tennessine
Compare Helium and Tennessine
Compare Helium and Tennessine 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 Helium vs Tennessine with most reliable information about their properties, attributes, facts, uses etc. You can compare He vs Ts on more than 90 properties like electronegativity , oxidation state, atomic shells, orbital structure, Electronaffinity, physical states, electrical conductivity and many more.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 |
1 | | | Atomic # Electronic Shell # Symbol Name Atomic Weight Metals | Metalloids | NonMetals | Alkali metals | Alkali earth metals | Lanthanoids | Transition metals | Post-transition metals | Other nonmetals | Halogens | Nobel gas | Actinoids |
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6 | | | 57 - 71 La - Lu Lanthanides | | | | | | | | | | | | | | | |
7 | | | 89 - 103 Ac - Lr Actinides | | | | | | | | | | | | | | | |
| Lanthanides | | | | | | | | | | | | | | | |
| Actinides | | | | | | | | | | | | | | | |
Facts
History
History | The element Helium was discovered by P. Janssen and N. Lockyer in year 1868 in Sweden and United Kingdom. Helium derived its name from the Greek word helios, meaning 'sun'. | The element Tennessine was discovered by Yuri Oganessian et al.(JINR in Dubna) in year 2010. Tennessine derived its name from Tennessee, United States. |
Discovery | P. Janssen and N. Lockyer (1868) | Yuri Oganessian et al.(JINR in Dubna) (2010) |
Isolated | W. Ramsay,T. Cleve, and N. Langlet (1895) | () |
Presence: Abundance in Nature and Around Us
Parts per billion (ppb) by weight / by atoms (1ppb =10^-7 %)
Crystal Structure and Atomic Structure
Atomic and Orbital Properties
Atomic Number | 2 | 117 |
Number of Electrons (with no charge) | 2 | 117 |
Number of Protons | 2 | 117 |
Mass Number | 4.002602 | 294 |
Number of Neutrons | 2 | 177 |
Shell structure (Electrons per energy level) | 2 | 2, 8, 18, 32, 32, 18, 7 |
Electron Configuration | 1s2 | [Rn] 5f14 6d10 7s2 7p5 |
Valence Electrons | 1s2 | 7s2 7p5 |
Oxidation State | - | - |
Atomic Term Symbol (Quantum Numbers) | 1S0 | 2P3/2 |
Shell structure |  |  |
Isotopes and Nuclear Properties
Helium has 2 stable naturally occuring isotopes while Tennessine has 0 stable naturally occuring isotopes.
Chemical Properties: Ionization Energies and electron affinity
Physical Properties
Thermal Properties - Enthalpies and thermodynamics
Regulatory and Health - Health and Safety Parameters and Guidelines
Compare With Other Elements
Compare Helium with all Group 18 elementsCompare Helium with all Period 1 elementsCompare Helium with all Noble Gas elements | Compare Tennessine with all Group 17 elementsCompare Tennessine with all Period 7 elementsCompare Tennessine with all Halogens elements |