12 Mg Magnesium 24.305 u

Magnesium

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주기
3
2
블록
s-블록
상 (표준 상태)
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.

외관: 광택 있는 회색 고체

물리적 성질

원자 질량 24.305 u
밀도 1.738 g/cm³
녹는점 649.9 °C
끓는점 1089.8 °C
표준 상태에서의 상 Solid
원자 반지름 145.0 pm

전자적 성질

전기 음성도 1.31
이온화 에너지 737.7 eV
원자가 전자 2

전자 배치

배치 [Ne] 3s²

Electron Shell Configuration

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

Position in Periodic Table

Magnesium position in the periodic table Mg

발견

발견자: Joseph Black
연도: 1755

Compounds Containing Magnesium

더 많은 알칼리 토금속

Explore on Science FYI

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 알칼리 토금속.
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.