Elements
109

Mt

Meitnerium

Meitnerium (Mt) is a radioactive metal that has the atomic number 109 in the periodic table, its appearance is not fully known due to the minuscule amounts produced of it. It is a Transition metal in Group 9. It has the symbol Mt.

Meitnerium is a very radioactive synthetic element only found in the laboratory. The most stable isotope has a half life of 4.5 seconds. It is named after Lise Meitner an Austrian-Swedish physicist who work on radioactivity. As with other heavy elements its chemical properties are just predicted based on the relationships shown by Iridium. As so little of it has been created the melting and boiling point have not been analysed.

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FAQ's

What is the Melting Point for Meitnerium?

Meitnerium has a Melting Point of °F, meaning at °F it will turn to a liquid.

What is the Boiling Point for Meitnerium?

Meitnerium has a Boiling Point of °F, meaning at °F it will turn to a Gas.

What is the Electronegativity of Meitnerium?

Meitnerium's Electronegativty is . Electronegativity is a measure of how strongly atoms attract bonding electrons to themselves.

What is the Heat of Vaporization of Meitnerium?

Meitnerium has a Heat of Vaporization of kJ/mol.

Uses

It has no significant commercial applications.

Sources

Obtained by bombarding bismuth-209 with iron-58.

109
Protons
109
Electrons
169
Neutrons

Mt

Element Symbol
Mt
Atomic Weight
278
Atomic Number
109
State
Unknown
Melting Point
Unknown
°C
Boiling Point
Unknown
°C
Heat of Vaporization
Unknown
kJ/mol
Crystal Structure
Unknown
Thermoconductivity
Unknown
W/cmK
Shells
2,8,18,32,32,15,2
Group
Unknown
Period
7
Block
D Block
Orbitals
[Rn] 5f14 6d7 7s2
Coefficient of Thermal Expansion
--
Covalent Radius
--
Density at 293K
--
Electrical Conductivity
--
First Ionization Potential
--
Second Ionization Potential
--
Third Ionization Potential
--
Ionic Radius
--
Oxydation States
--
Lattice Parameter
--
Lattice Parameter 2
--
Lattice Parameter 3
--
Pronounced

MITE-ner-i-um

Discovered by

Heavy Ion Research Laboratory (HIRL)

Discovery date

1982

Orbital configuration
2,8,18,32,32,15,2

Download the Periodic Table

Explore Other Unknowns

289
114

Fl

Flerovium
293
116

Lv

Livermorium
293
117

Ts

Tennessine
289
115

Mc

Moscovium
286
113

Nh

Nihonium
281
111

Rg

Roentgenium
281
110

Ds

Darmstadtium
Unknown elements (or transactinides) are the heaviest elements of the periodic table. These are meitnerium (Mt, atomic number 109), darmstadtium (Ds, atomic number 110), roentgenium (Rg, atomic number 111), nihonium (Nh, atomic number 113), moscovium (Mc, atomic number 115), livermorium (Lv, atomic number 116) and tennessine (Ts, atomic number 117).
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Darmstadtium

110