Tennessine Bohr Model, Electron Shell Diagram
Visualize the exact electron shell distribution of Tennessine (Ts). Its 117 total electrons orbit the microscopic nucleus across 7 quantum energy shells in the specific mathematical pattern 2 – 8 – 18 – 32 – 32 – 18 – 7.
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Tennessine Nuclear Composition
Protons, neutrons, and electrons at a glance
Protons
117
Positive charge carriers in the nucleus
Neutrons
177
Neutral mass carriers in the nucleus
Electrons
117
Across 7 shells: 2-8-18-32-32-18-7
Detailed Bohr Model Analysis
Tennessine's traditional Bohr model diagram provides a spectacular two-dimensional blueprint of its subatomic structure. By plotting its 117 negatively charged electrons rotating around a positively charged nucleus (containing 117 protons and approximately 177 neutrons), we can visually decrypt its chemical properties.Across its 7 electron shells, Tennessine distributes its electrons in the following exact hierarchical sequence, from the innermost ring outward: 2 – 8 – 18 – 32 – 32 – 18 – 7.
Applying the Bohr Rules to Tennessine
The Bohr model, introduced by Niels Bohr in 1913, radically changed our understanding of atomic structure by proposing that electrons orbit the nucleus in strictly quantized circular energy levels (or 'shells'). For Tennessine, we apply the 2n² rule, which states that the maximum electron capacity of any given shell is determined by two times the shell number (n) squared.In the case of Tennessine, its 117 total electrons stack outward from the nucleus. The innermost K-shell (n=1) holds 2 electrons. The L-shell (n=2) holds 8. This stacking continues geometrically until we map the entire 2 – 8 – 18 – 32 – 32 – 18 – 7 sequence. Because Tennessine is a high-mass transuranic or deep-period element, its inner shells are packed with immense density—holding up to 32 electrons in a single shell. This massive inner core creates a powerful electrostatic shield, severely shielding the outermost electrons from the nucleus and introducing complex relativistic contraction.
The Role of Tennessine's Valence Electrons
When analyzing the Bohr model of Tennessine, the absolute most critical ring is the outermost shell. This layer holds exactly 7 valence electrons.In chemistry, the core electrons (the inner rings) are chemically inert. They do not participate in bonding. All chemical reactivity, covalent sharing, and ionic transfers are conducted exclusively by the valence electrons. Because Tennessine has 7 valence electrons, it inherently seeks to achieve a stable "octet" (a full outer shell of 8 electrons, or 2 for lightweight elements). Holding more than 4 valence electrons means Tennessine is highly electronegative. It aggressively steals or shares electrons from surrounding elements to perfectly complete its outer ring, typically forming strong covalent bonds or electronegative anions.
Bohr Shell Rules (Quick Reference)
- 2n² Rule: Shell n holds a maximum of 2n² electrons.
- Octet Rule: The outermost (valence) shell holds a max of 8 electrons for chemical stability.
- Aufbau Order: Electrons fill from innermost shell outward.
- Valence = Reactivity: The electrons in the last shell dictate how the element bonds.
Chemical & Physical Overview
The element Tennessine, represented universally by the chemical symbol Ts, holds the atomic number 117. This means that a standard neutral atom of Tennessine possesses exactly 117 protons within its dense nucleus, orbited precisely by 117 electrons. With a standard atomic weight of approximately 294.000 atomic mass units (u), Tennessine is classified fundamentally as a halogen.
From a periodic standpoint, Tennessine resides in Period 7 and Group 17 of the periodic table, placing it firmly within the p-block. The overarching category of an element—whether it behaves as an alkali metal, a halogen, a noble gas, or a transition metal—is determined exclusively by how these electrons fill the available quantum shells.
Diving deeper into its physical footprint, Tennessine exhibits a calculated atomic radius of 138 picometers (pm). When attempting to physically remove an electron from its outermost shell, it requires a primary ionization energy of an undetermined amount of eV. Furthermore, its tendency to attract shared electrons in a covalent chemical bond—known as its electronegativity—measures at no measurable electronegativity (typical of perfectly stable noble gases). These specific subatomic metrics (radius, ionization, and electron affinity) combine to define exactly how Tennessine interacts, bonds, and reacts with every other chemical element in the observable universe.
Atomic Properties — Tennessine
Atomic Mass
294 u
Electronegativity
0 (Pauling)
Block / Group
P-block, Group 17
Period
Period 7
Atomic Radius
138 pm
Ionization Energy
N/A
Electron Affinity
0 eV
Category
Halogen
Oxidation States
Real-World Applications
Real-World Applications & Industrial Uses
The distinct electronic structure of Tennessine directly empowers its functionality in the physical world. Its specific combination of atomic radius, electron affinity, and valence shell configuration makes it absolutely indispensable across modern industry, biological systems, and advanced technology.Here are the primary real-world applications of Tennessine:
Without the specific quantum mechanics occurring microscopically within Tennessine's electron cloud, these macroscopic technologies and biological processes would fundamentally fail to operate.
Did You Know?
Named after Tennessee (home of Oak Ridge National Laboratory, Vanderbilt University, and University of Tennessee). Synthesized in 2010 at JINR by bombarding Bk-249 with Ca-48. Tennessine may not behave like a halogen — relativistic effects could make it behave more like an astatine/post-transition metal hybrid. Its predicted ionization energy is comparable to lead.Shell-by-Shell Capacity Table
How each of Tennessine's 7 shells compare to their theoretical maximum
| Shell | Symbol | Electrons (This Element) | Max Capacity (2n²) | Fill % |
|---|---|---|---|---|
| 1 | K (n=1) | 2 | 2 | 100% |
| 2 | L (n=2) | 8 | 8 | 100% |
| 3 | M (n=3) | 18 | 18 | 100% |
| 4 | N (n=4) | 32 | 32 | 100% |
| 5 | O (n=5) | 32 | 50 | 64% |
| 6 | P (n=6) | 18 | 72 | 25% |
| 7 | Q (n=7) | 7 | 98 | 7% |
Shell Comparison: Tennessine vs Neighbors
⬤ Current
Ts
Tennessine
Z=117
2-8-18-32-32-18-7 shells
Explore Other Atomic Models of Tennessine
Frequently Asked Questions — Tennessine Bohr Model
Bohr Models for All 118 Elements

Toni Tuyishimire
Toni is specialized in high-performance computational tools and complex STEM visualizations. Through Toni Tech Solution, he architects scientifically accurate, deterministic software systems designed to educate and empower global digital audiences.
