Ca
Calcium is the most abundant metal in the human body, essential for bones, teeth, and cellular signaling.
የፊዚክስ ባህሪያት
| አቶሚክ | 40.078 u |
| ብዛት | 1.55 g/cm³ |
| የቀለም አማራጭ | 1115.0 K |
| የሙቀት መጠኑ፦ | 1757.0 K |
| ቅርጽ | Dull gray, silver metallic |
| የክፍሉ ወቅት | ቀጥ ያለ |
የኬሚካል ባህሪያት
| ሴኮንዶች | 1.0 (ፒየር) |
| ፊደል ሠሌዳው፦ | 589.8 kJ/mol |
| ፊደል ሠሌዳው፦ | 2.37 kJ/mol |
| መተላለፊያ | +1, +2 |
የፊደል ቅርጽ ምርጫዎች
| የኤሌክትሮን ማስተካከያ | [Ar] 4s2 |
| አቶሚክ | 197.0 pm |
| ሬዲየስ | 176.0 pm |
| ቫን ዴር ዋልስ | 231.0 pm |
መከፈት
| የተገኘው በ | Humphry Davy |
| የምርምር ዓመት | 1808 |
| ቦታ | London, England |
| ስም፦ (_N) | Latin 'calx' meaning lime |
ስለ Calcium
Calcium is a soft, silvery-white alkaline earth metal and the fifth most abundant element in Earth's crust. It is essential for bones, teeth, and shells. Calcium ions serve as key signaling molecules in cellular processes.
ፕሮግራሞች
Cement and concrete, plaster of Paris, steel refining, antacids, dietary supplements, and water treatment.
ሐቅ
The human body contains about 1 kg of calcium, 99% in bones and teeth. Your skeleton is replaced about every 10 years.
ሴኮንዶች
| ብዛት | ብዛት | አራተኛ | ቋሚ |
| 40 | 0.96941% | - | አዎ |
| 42 | 0.00647% | - | አዎ |
| 44 | 0.02086% | - | አዎ |
የኤሌክትሮን ማስተካከያ
[Ar] 4s2