12 Mg Magnesium 24,305 u

Magnesium

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Período
3
Grupo
2
Bloco
s-bloco
Fase (STP)
Solid

Magnesium is a lightweight alkaline earth metal essential for living cells. It burns with a bright white flame and is used in alloys and fireworks.

Aparência: Shiny grey solid

Propriedades físicas

Massa atômica 24.305 u
Densidade 1.738 g/cm³
Ponto de fusão 649.9 °C
Ponto de ebulição 1089.8 °C
Fase em STP Solid
Raio atômico 145.0 pm

Propriedades eletrônicas

Eletronegatividade 1.31
Energia de ionização 737.7 eV
Elétrons de valência 2

Configuração eletrônica

Configuração [Ne] 3s²

Electron Shell Configuration

Magnesium electron shell configuration Mg 2e⁻ 8e⁻ 2e⁻

Position in Periodic Table

Magnesium position in the periodic table Mg

Descoberta

Descoberto por: Joseph Black
Ano: 1755

Compounds Containing Magnesium

Mais Metal Alcalino-Terroso

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Frequently Asked Questions

What is Magnesium?
Magnesium (Mg) is a chemical element with atomic number 12. It is a solid at standard temperature and pressure, classified as a metal alcalino-terroso.
What are the key properties of Magnesium?
Magnesium has an atomic mass of 24.305 u, density of 1.738 g/cm³, melting point of 649.9°C, boiling point of 1089.8°C.
What is the electron configuration of Magnesium?
The electron configuration of Magnesium is [Ne] 3s2. It is in the s-block of the periodic table.
Who discovered Magnesium?
Magnesium was discovered by Joseph Black in 1755.
What is the electronegativity of Magnesium?
Magnesium has an electronegativity of 1.31 on the Pauling scale.