101 Md Mendelevium 258,0 u

Mendelevium

Período
7
Grupo
—
Bloco
f-bloco
Fase (STP)
Solid

Mendelevium is named after Dmitri Mendeleev, creator of the periodic table. It was the first element to be produced one atom at a time.

About Mendelevium

Detection of mendelevium was achieved one atom at a time, the first element for which that technique was necessary and the method that has governed superheavy element work ever since. The name honours Dmitri Mendeleev, whose periodic table furnished the framework into which such elements are placed. Mendelevium carries atomic number 101 and a relative atomic mass of 258.0, with the configuration [Rn] 5f13 7s2 and an electronegativity of 1.3, and it is a solid at standard temperature and pressure. Because it must be produced by accelerator bombardment rather than reactor irradiation, the quantities available have never exceeded what can be studied by tracer and single-atom chemical techniques.

Propriedades físicas

Massa atômica 258.0 u
Fase em STP Solid

Propriedades eletrônicas

Eletronegatividade 1.3

Configuração eletrônica

Configuração [Rn] 5f¹³ 7s²

Electron Shell Configuration

Mendelevium electron shell configuration Md 2e⁻ 8e⁻ 18e⁻ 32e⁻ 31e⁻ 8e⁻ 2e⁻
Electron shell structure of Mendelevium — electrons per shell.
Shell Electrons
1 (K) 2
2 (L) 8
3 (M) 18
4 (N) 32
5 (O) 31
6 (P) 8
7 (Q) 2

Position in Periodic Table

Mendelevium position in the periodic table Md

Bloco e período

Bloco

s p d f

Período

1 2 3 4 5 6 7

Tabela Periódica

Lantanídeos Actinídeos

Mais Actinídeo

89 Ac Actinium 90 Th Thorium 91 Pa Protactinium 92 U Uranium 93 Np Neptunium 94 Pu Plutonium 95 Am Americium 96 Cm Curium 97 Bk Berkelium 98 Cf Californium

Frequently Asked Questions

What is Mendelevium?
Mendelevium (Md) is a chemical element with atomic number 101. It is a solid at standard temperature and pressure, classified as a actinídeo.
What are the key properties of Mendelevium?
Mendelevium has an atomic mass of 258.0 u.
What is the electron configuration of Mendelevium?
The electron configuration of Mendelevium is [Rn] 5f13 7s2. It is in the f-block of the periodic table.
What is the electronegativity of Mendelevium?
Mendelevium has an electronegativity of 1.3 on the Pauling scale.