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115 Mc Moscovium 289

Moscovium

UNKNOWN, PROBABLY POST-TRANSITION METAL
Bohr Model: Electrons arranged in energy shells around the nucleus.

Moscovium is the name of a synthetic superheavy element in the periodic table that has the symbol Mc and has the atomic number 115. It is an extremely radioactive element; its most stable known isotope, moscovium-289, has a half-life of only 220 milliseconds. It is also known as eka-bismuth or simply element 115.

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Quick Facts

Atomic Number 115
Period 7
Group 15
Phase Solid
Appearance Unknown
About Unknown, Probably Post-Transition Metals

Transition metals are elements with partially filled d-orbitals. They are hard, have high melting points, and often form colored compounds.

History

Discovered By Joint Institute for Nuclear Research
Named By Unknown

Physical Properties

Atomic Mass 289
Density 13.5 g/L
Molar Heat N/A J/(mol·K)
Phase Transition (Melting & Boiling Points)

Moscovium melts at 670 K and boils at 1400 K.

Atomic Properties

Electron Config *[Rn] 5f14 6d10 7s2 7p3
Electronegativity N/A
Electron Affinity 35.3 kJ/mol
Ionization Energy N/A kJ/mol
Orbital Filling Diagram
This diagram visualizes electron configuration according to the Aufbau principle and Hund's rule. Boxes represent orbitals (s, p, d, f), while arrows indicate electrons with spin up or down. Electrons fill lower energy levels first and occupy orbitals singly before pairing.

Photograph

Image of Moscovium Source: Wikipedia

External Resources

Wikipedia PubChem Royal Society of Chemistry Periodic Videos (YouTube)

Study Guide

Atomic Number

The number of protons in the nucleus, which defines the element.

Atomic Mass

The average mass of an atom, including protons and neutrons.

Electronegativity

A measure of how strongly an atom attracts electrons in a bond.

Ionization Energy

The energy required to remove an electron from an atom.

Electron Config

The arrangement of electrons in the atom's energy shells.