20 Ca Calcium 40,078 u

Calcium

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Periyot
4
Grup
2
Blok
s-Blok
Faz (STP)
Solid

Calcium is the most abundant metal in the human body. It is essential for bones, teeth, and cellular signaling.

Görünüm: Dull gray, silver

Fiziksel Özellikler

Atom Kütlesi 40.078 u
Yoğunluk 1.55 g/cm³
Erime Noktası 841.9 °C
Kaynama Noktası 1483.8 °C
STP'de Faz Solid
Atom Yarıçapı 194.0 pm

Elektronik Özellikler

Elektronegatiflik 1.0
İyonlaşma Enerjisi 589.8 eV
Elektron Afinitesi 2.37 eV
Değer Elektronları 2

Elektron Yapısı

Yapılandırma [Ar] 4s²

Electron Shell Configuration

Calcium electron shell configuration Ca 2e⁻ 8e⁻ 8e⁻ 2e⁻

Position in Periodic Table

Calcium position in the periodic table Ca

Keşif

Keşfeden: Humphry Davy
Yıl: 1808

Compounds Containing Calcium

Daha fazla Toprak Alkali Metal

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Frequently Asked Questions

What is Calcium?
Calcium (Ca) is a chemical element with atomic number 20. It is a solid at standard temperature and pressure, classified as a toprak alkali metal.
What are the key properties of Calcium?
Calcium has an atomic mass of 40.078 u, density of 1.55 g/cm³, melting point of 841.9°C, boiling point of 1483.8°C.
What is the electron configuration of Calcium?
The electron configuration of Calcium is [Ar] 4s2. It is in the s-block of the periodic table.
Who discovered Calcium?
Calcium was discovered by Humphry Davy in 1808.
What is the electronegativity of Calcium?
Calcium has an electronegativity of 1.0 on the Pauling scale.