I-Calcium
Ingxenye 20 · 40.078 u
I-calcium iyinsimbi eningi kakhulu emzimbeni womntu, ebalulekile emathonjeni, emazinyoni, kanye nokuqondisa kweselula.
Izici Zobuchopho
| I-Atom Mass | 40.078 u |
| Ubukhulu | 1.55 g/cm³ |
| Izinga lokuncibilika | 1115.0 K |
| Izinga lokubopha | 1757.0 K |
| Ukubonakala | Umnyama omnyama, igolide elimhlophe |
| Isimo ku-Room Temp | Iqinile |
Izici ze-chemical
| Electronegativity | 1.0 (I-Pauling) |
| I-Ionization Energy | 589.8 kJ/mol |
| I-electron affinity | 2.37 kJ/mol |
| I-Oxidation States | +1, +2 |
Izici ze-Atom
| I-electron | [Ar] 4s2 |
| I-Atom Radius | 197.0 pm |
| I-Covalent Radius | 176.0 pm |
| I-Van der Waals Radius | 231.0 pm |
Ukuqapha
| Itholakele ngu | Humphry Davy |
| Unyaka wokuqamba | 1808 |
| Indawo | i-London, i-England |
| Ibizwa nge | isi-Latin 'calx' isho lime |
Malunga I-Calcium
I-Calcium iyi-metallic ye-alkali ye-earth emnyama, emnyama, emnyama futhi iyingxenye yesithupha eminingi ekhona engqimbeni ye-earth. Ibalulekile kumathambo, amazinyo, nama-shells. I-Calcium ions isebenza njengezinto ezibalulekile zokukhombisa ama-molecule ezinqubo zeselula.
Izisebenziso
Isikhonkwane nekhonkrithi, i-plaster yaseParis, ukukhiqizwa kwensimbi, ama-antacids, ama-supplements okudla, nokuhlanzwa kwamanzi.
Iqiniso elijabulisayo
Isiqu somuntu siqukethe cishe i-1 kg ye-calcium, i-99% emithambo nezinyoni. Iskeleton yakho ishintshwa cishe ngonyaka ngamunye we-10.
Isibonisi
| Inani le-mass | Ubukhulu | Isikhathi esingu-half-life | Iqinile |
| 40 | 0.96941% | - | Yebo |
| 42 | 0.00647% | - | Yebo |
| 44 | 0.02086% | - | Yebo |
I-electron
[Ar] 4s2