109 Mt Meitnerium 278,0 u

Meitnerium

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Periode
7
Gruppe
9
Block
d-Block
Phase (STP)
Solid

Meitnerium is named after Lise Meitner, the physicist who contributed to the discovery of nuclear fission.

About Meitnerium

Lise Meitner, whose interpretation of experimental results established that heavy nuclei can split, is commemorated in the name of element 109. Meitnerium has a relative atomic mass of 278.0 and the configuration [Rn] 5f14 6d7 7s2, which places it in group 9 of period 7 below iridium. Its electronegativity has not been determined, and its chemical properties remain unknown; the classification given to it reflects that uncertainty rather than any measured behaviour. Every atom of meitnerium so far observed has been made in an accelerator and identified indirectly, from the sequence of alpha decays that follows its formation.

Physikalische Eigenschaften

Atommasse 278.0 u
Phase bei STP Solid

Elektronenkonfiguration

Konfiguration [Rn] 5f¹⁴ 6d⁷ 7s²

Electron Shell Configuration

Meitnerium electron shell configuration Mt 2e⁻ 8e⁻ 18e⁻ 32e⁻ 32e⁻ 15e⁻ 2e⁻
Electron shell structure of Meitnerium — electrons per shell.
Shell Electrons
1 (K) 2
2 (L) 8
3 (M) 18
4 (N) 32
5 (O) 32
6 (P) 15
7 (Q) 2

Position in Periodic Table

Meitnerium position in the periodic table Mt

Block & Periode

Block

s p d f

Periode

1 2 3 4 5 6 7

Periodensystem

Lanthanide Actinide

Mehr Unbekannte Eigenschaften

110 Ds Darmstadtium 111 Rg Roentgenium 112 Cn Copernicium 113 Nh Nihonium 114 Fl Flerovium 115 Mc Moscovium 116 Lv Livermorium 117 Ts Tennessine 118 Og Oganesson

Frequently Asked Questions

What is Meitnerium?
Meitnerium (Mt) is a chemical element with atomic number 109. It is a solid at standard temperature and pressure, classified as a unbekannte eigenschaften.
What are the key properties of Meitnerium?
Meitnerium has an atomic mass of 278.0 u.
What is the electron configuration of Meitnerium?
The electron configuration of Meitnerium is [Rn] 5f14 6d7 7s2. It is in the d-block of the periodic table.