Moscovium
Moscovium (Mc, atomic number 115) is a Period 7 post-transition (p-block, 290 u). Superheavy Group 15 pnictogen synthesized via calcium-48 bombardment of americium-243; its alpha decay chain directly populates Nihonium.
Moscovium is a chemical element on the periodic table with the atomic symbol Mc, atomic number 115, and standard atomic weight 290 u. Classified as a Post-Transition within Group 15 and Period 7 (p-block), moscovium possesses a ground-state electron configuration of [Rn] 5f14 6d10 7s2 7p3 distributed across 7 concentric Bohr electron shells (2 · 8 · 18 · 32 · 32 · 18 · 5) with 5 outer-shell electrons. Superheavy Group 15 pnictogen synthesized via calcium-48 bombardment of americium-243; its alpha decay chain directly populates Nihonium.
⚛️ Interactive Periodic Table Lab: Explore Moscovium (Mc, Z = 115) in the CRV Science Dynamic Periodic Table & Bohr Orbital Lab to visualize its animated 2 · 8 · 18 · 32 · 32 · 18 · 5 electron shells, simulate live phase transitions from 0 K to 6,000 K, and compare periodic heatmaps across all 118 IUPAC elements.
Atomic Structure and Periodic Trends: How Do Quantum Orbitals Define Moscovium?
Electron Shell Architecture and Ground-State Configuration
A neutral atom of moscovium contains 115 protons in its atomic nucleus balanced by 115 electrons occupying quantized atomic orbitals. In the Bohr-Sommerfeld and quantum-mechanical orbital models, these electrons populate 7 principal energy shells (K (n=1): 2e−, L (n=2): 8e−, M (n=3): 18e−, N (n=4): 32e−, O (n=5): 32e−, P (n=6): 18e−, Q (n=7): 5e−), terminating in the directional dumbbell-shaped p-orbital (azimuthal quantum number l = 1) with ground-state configuration [Rn] 5f14 6d10 7s2 7p3. Removing the most loosely bound valence electron from an isolated gaseous moscovium atom requires a first ionization energy of 538 kJ/mol, while its tendency to attract shared bonding electrons is quantified by a Pauling electronegativity of N/A (closed-shell or superheavy regime).
Periodic Table Position and Neighboring Elements
Within the periodic table, Moscovium occupies Period 7, Group 15 of the p-block (Post-Transition Metals). Along Period 7, it is flanked by Flerovium (Fl, Z = 114) and Livermorium (Lv, Z = 116). Vertically within its periodic family, Moscovium shares valence orbital symmetry and homologous chemical trends with Bismuth (Bi). Learners can interactively compare Moscovium's orbital radii, ionization energy, and Pauling electronegativity against all neighboring elements in the Dynamic Periodic Table Lab.
Physical and Thermodynamic Properties: How Does Moscovium Behave Across Temperature Regimes?
Standard Phase, Melting Point, and Boiling Point Dynamics
At standard ambient temperature and pressure (298.15 K / 25 °C, 1 atm), elemental moscovium exists as a crystalline solid. As thermal energy increases, its crystal or molecular lattice undergoes solid-to-liquid fusion at a melting point of 670 K (+396.85 °C / +746.3 °F) and transitions to the vapor phase at a normal boiling point of 1,400 K (+1126.85 °C / +2060.3 °F), spanning a liquid thermodynamic range of 730 K. In the CRV Science Dynamic Periodic Table, dragging the live temperature slider between absolute zero (0 K) and solar-photosphere temperatures (6,000 K) dynamically tracks Moscovium's state transitions in real time alongside enthalpy and entropy phase equilibria.
Quantitative Atomic and Thermodynamic Parameter Matrix
| Parameter | Quantitative Value / Formula | Physical / Quantum Basis | Comparative Context in Group 15 / Period 7 |
|---|---|---|---|
| Atomic Number & Symbol | Z = 115 (Mc) | 115 nuclear protons; nuclear charge +115e | Located in Period 7, Group 15 (p-block) |
| Standard Atomic Weight | 290 u (g/mol) | Abundance-weighted isotopic nucleon mass | ~175 neutrons in dominant/reference mass number |
| Electron Configuration | [Rn] 5f14 6d10 7s2 7p3 | Shells: 2 · 8 · 18 · 32 · 32 · 18 · 5 (5 outer-shell e−) | Post-Transition Metals valence orbital architecture |
| Electronegativity & Ionization | χ = N/A; IE1 = 538 kJ/mol | Pauling bond polarity scale & first valence ionization enthalpy | Governs covalent vs. ionic bond character |
| Melting & Boiling Points | MP: 670 K; BP: 1400 K | Cohesive lattice energy and intermolecular forces | STP (298 K) phase: SOLID (Liquid range: 730 K) |
| Principal Oxidation States | +1, +3 | Valence electron donation, sharing, or acceptance | Discovered / First Isolated: 2003 |
Chemical Reactivity, Bonding, and Oxidation States: How Does Moscovium Form Compounds?
Characteristic Oxidation States and Coordination Chemistry
As a p-block post-transition metal situated to the right of the d-block, its valence electrons experience incomplete nuclear shielding from filled d (and in Period 6–7, f) subshells, resulting in higher electronegativity, softer metallic lattices, and the relativistic inert-pair effect. In chemical compounds, moscovium exhibits characteristic oxidation states of +1, +3. Depending on the electronegativity difference (Δχ) of its bonding partners—such as Oxygen (χ = 3.44), Fluorine (χ = 3.98), Chlorine (χ = 3.16), Nitrogen (χ = 3.04), Carbon (χ = 2.55), or Hydrogen (χ = 2.20)—moscovium forms redox-specific oxides, halides, hydrides, or coordination complexes governed by Gibbs free energy (ΔG = ΔH − TΔS).
Nucleosynthesis, Discovery History, and Elemental Origins
First identified or isolated in 2003, Moscovium carries a distinct cosmological and geochemical signature. As a synthetic transuranic element (Z = 115), moscovium does not persist in primordial terrestrial minerals and is produced atom-by-atom in nuclear reactors or heavy-ion particle accelerators.
Biological Role and Scientific Applications: Why Is Moscovium Important in Nature and Technology?
Biochemical Classification: Abiotic / Technological / Synthetic
In comparative biochemistry and systems physiology, Moscovium is classified as Abiotic / Technological / Synthetic. No known essential biological role; important in planetary geochemistry, astrophysics, materials science, or nuclear physics. Across terrestrial and marine ecosystems, its chemical speciation interacts with thermodynamics, enthalpy, entropy, chemistry.
Key Mechanistic Functions and Technological Uses
Superheavy Group 15 pnictogen synthesized via calcium-48 bombardment of americium-243; its alpha decay chain directly populates Nihonium. Researchers and students can further investigate Moscovium's functional role alongside all 118 elements by launching the Interactive Periodic Table & Element Detective Lab on CRV Science Learn.
Frequently Asked Scientific Questions
What is the electron configuration and valence shell structure of Moscovium (Mc)?
Moscovium (atomic number Z = 115) has the ground-state electron configuration [Rn] 5f14 6d10 7s2 7p3, distributing its 115 electrons across 7 shells as 2 · 8 · 18 · 32 · 32 · 18 · 5. Its outermost shell contains 5 electrons, placing Moscovium in Group 15, Period 7 (p-block) as a member of the Post-Transition Metals. You can watch these 115 electrons orbit the nucleus in real time in the Dynamic Periodic Table Bohr Lab.
What phase of matter is Moscovium at room temperature, and when does it melt or boil?
At standard room temperature (298 K / 25 °C) and 1 atm pressure, Moscovium is a crystalline solid. It melts at 670 K (+396.85 °C / +746.3 °F) and boils at 1,400 K (+1126.85 °C / +2060.3 °F). Using the 0–6,000 K temperature slider in the Interactive Periodic Table, you can observe Moscovium's exact solid, liquid, and gas transitions relative to all other elements.
How does Moscovium function in biochemistry, materials science, and technology?
Superheavy Group 15 pnictogen synthesized via calcium-48 bombardment of americium-243; its alpha decay chain directly populates Nihonium. In biological systems, it is categorized under Abiotic / Technological / Synthetic, with principal oxidation states of +1, +3 and a first ionization energy of 538 kJ/mol.