What Is Moscovium?
With atomic number 115 and chemical symbol Mc, Moscovium sits among the post-transition metals just right of the main transition block.
Named after Moscow Oblast, Russia.
As a post-transition metal in Period 7 and Group 15 (Nitrogen Group / Pnictogens), moscovium's placement on the table reflects its electron configuration of [Rn] 5f¹⁴ 6d¹⁰ 7s² 7p³, which governs its bonding behavior and the type of compounds it typically forms.
Position on the Periodic Table
Moscovium is located in Period 7, the bottom row of the standard periodic table, consisting largely of radioactive and synthetic elements.
Within that row, moscovium sits in Group 15 (Nitrogen Group / Pnictogens), alongside elements that share a similar number of valence electrons and, by extension, similar chemical behavior.
This position is not arbitrary — the periodic table was deliberately organized so that an element's row and column reveal its expected reactivity, bonding pattern, and physical state at a glance.
Physical & Chemical Properties
Moscovium has an atomic mass of (290) u and a density of ~13.5 g/cm³.
Moscovium is generally softer and lower-melting than the transition metals positioned to its left on the periodic table.
Electron Configuration Explained
Moscovium's electron configuration is [Rn] 5f¹⁴ 6d¹⁰ 7s² 7p³, describing how its electrons are distributed across shells and subshells around the nucleus.
Reading the configuration in order shows electrons filling shells of increasing energy, following the standard Aufbau principle that explains how atomic structure builds up across the periodic table.
The outermost (valence) electrons shown in this configuration are what ultimately determine moscovium's chemical reactivity and the type of bonds it forms with other elements.
History & Discovery
Moscovium was formally discovered in 2003, Oganessian, identified through the careful isolation and analytical techniques typical of that era's chemical research.
Many elements from this period were anticipated by Dmitri Mendeleev's periodic table, which successfully predicted gaps corresponding to undiscovered elements well before laboratory instruments existed to confirm them directly.
What Is Moscovium Used For?
Moscovium's specific properties make it useful in several applications, including:
- Research only
- Nuclear physics
- Scientific study
- No practical uses
- Academic research
These uses reflect moscovium's underlying classification as a post-transition metal, since the same properties that define its category in chemistry also determine where it becomes practically useful.
Fun Facts About Moscovium
- Moscovium exists for only a fraction of a second before decaying.
- Moscovium is element number 115 on the periodic table, in Period 7 and Group 15.
- Its standard atomic mass is (290) u, calculated from the natural abundance of its isotopes.
Frequently Asked Questions
What is Moscovium's atomic number?
Moscovium has atomic number 115.
What is Moscovium's chemical symbol?
Moscovium's symbol is Mc.
What group and period is Moscovium in?
Moscovium is in Period 7, Group 15 (Nitrogen Group / Pnictogens).
What is Moscovium's atomic mass?
Moscovium's standard atomic mass is (290) u.