Radium mungsuh calcium
Tabel périodik
Symbol
Ra
Ca
Panggil Group
2
16
2
16
Panggil periode
7
4
Block
s pemblokiran
s pemblokiran
Family unsur
alkalin bumi
alkalin bumi
CAS Number
7440144
99+
7440702
21
Jeneng papan Group
3M Im_
Fm_ 3M
Space Group Number
229.00
1
225.00
2
facts
Facts Interesting
- metal Radium punika logam abot saka Alkaline logam bumi asli.
- Radium logam punika Highly radioaktif lan ora duwe tengen mangiwa.
- Calcium rangking Alexa 5th ing dhaftar turah mbrawah bumi persentasi.
- Iki urip ing negara senyawa.
- Gypsum utawa calcium sulfat digunakake minangka plester lan plester saka paris.
sumber
Mining, Ores logam
bumi lemah ndhuwur, Found in Minerals, Mining, Ores saka Minerals
History
sing katutup
Not Available
Humphry Davy
Discovery
ing taun 1898
ing taun 1808
turah mbrawah
Turah mbrawah Ing Universe
ora Sumadhiya
7 * 10-3 %
3
Turah mbrawah Ing Sun
~-9999 %
~0.007 %
4
Turah mbrawah Ing meteorit
ora Sumadhiya
1.10 %
4
Turah mbrawah Ing bumi lemah ndhuwur
0.00 %
99+
5.00 %
3
Turah mbrawah Ing Segara
0.00 %
99+
0.00 %
5
Turah mbrawah Ing Manungsa
0.00 %
20
1.40 %
1
ulah
Ulah lan Wuku
- Punika logam Highly radioaktif; lan arang-arang Radium-223 digunakake kanggo nambani kanker prostat.
- Kang digunakake ing cat cetha.
Character length exceed error
Ulah Industrial
NA
Industri Kimia
Ulah Medical
Industry Pharmaceutical
Dentistry, Industry Pharmaceutical
Ulah liyane
NA
wesi
Properties biologi
keracunan
Highly Toxic
non Toxic
Saiki ing badan Human
Ora
Ya
Sang
ora Sumadhiya
60.50 Sang / mg dm-3
4
ing Bone
ora Sumadhiya
170,000.00 ppm
1
fisik Properties
leleh Point
700.00 ° C
99+
839.00 ° C
99+
Boiling Point
1,737.00 ° C
99+
1,484.00 ° C
99+
katon
State fisik
Solid
Solid
warna
perak Putih
Gray
luster
metallic
NA
atose
Mohs atose
ora Sumadhiya
1.75
17
Brinell atose
ora Sumadhiya
170.00 MPa
99+
Kacepetan swara
ora Sumadhiya
3,810.00 m / s
19
Properties Optical
allotropes
Ora
Ora
α allotropes
ora Sumadhiya
ora Sumadhiya
β allotropes
ora Sumadhiya
ora Sumadhiya
γ allotropes
ora Sumadhiya
ora Sumadhiya
Kimia Properties
Formula Kimia
Ra
Ca
isotop
Isotop dikenal
33
6
19
20
keelektronegatifan
Pauling Elektronegativitas
0.90
99+
1.00
99+
Sanderson Elektronegativitas
ora Sumadhiya
0.95
24
Allred Rochow Elektronegativitas
0.97
38
1.04
34
Mulliken-Jaffe Elektronegativitas
0.92
20
1.08
17
Allen Elektronegativitas
0.89
99+
1.03
39
Electropositivity
Pauling Electropositivity
3.10
5
3.00
9
tenogo ionisasi
Level Energy 1st
509.30 kJ / mol
99+
589.80 kJ / mol
99+
Level Energy 2
979.00 kJ / mol
99+
1,145.40 kJ / mol
99+
Level Energy 3rd
ora Sumadhiya
4,912.40 kJ / mol
7
Level Energy 4
ora Sumadhiya
6,491.00 kJ / mol
7
Level Energy 5th
ora Sumadhiya
8,153.00 kJ / mol
7
Level Energy 6th
ora Sumadhiya
10,496.00 kJ / mol
8
tingkat Energy 7
ora Sumadhiya
12,270.00 kJ / mol
12
Level Energy 8
ora Sumadhiya
14,206.00 kJ / mol
15
Level Energy 9
ora Sumadhiya
18,191.00 kJ / mol
12
Level Energy 10th
ora Sumadhiya
20,385.00 kJ / mol
16
Level Energy 11
ora Sumadhiya
57,110.00 kJ / mol
3
Level Energy 12
ora Sumadhiya
63,410.00 kJ / mol
3
Level Energy 13
ora Sumadhiya
70,110.00 kJ / mol
3
Level Energy 14
ora Sumadhiya
78,890.00 kJ / mol
4
Level Energy 15
ora Sumadhiya
86,310.00 kJ / mol
5
Level Energy 16
ora Sumadhiya
94,000.00 kJ / mol
6
Level Energy 17
ora Sumadhiya
104,900.00 kJ / mol
7
Level Energy 18
ora Sumadhiya
111,711.00 kJ / mol
8
padha karo elektrokimia
4.22 g / amp-day
6
0.75 g / amp-day
99+
Fungsi Work elektron
ora Sumadhiya
2.87 eV
38
Properties Kimia liyane
ionisasi, Isotop radioaktif, Radioaktif
Kimia Stabilitas, Flammability, ionisasi, kelarutan
atom Properties
Panggil atom
88
30
20
99+
Konfigurasi elektron
[Rn] 7s 2
[Ar] 4s 2
Struktur Crystal
Body tengah kubik (Bcc)
Face tengah kubik (FCC)
Crystal pola
BCC-Crystal-Structure-.jpg#100
FCC-Crystal-Structure-of-Calcium.jpg#100
atom
Jumlah proton
88
30
20
99+
Jumlah Neutron
138
16
20
99+
Jumlah Èlèktron
88
30
20
99+
Radius saka Atom
Radius atom
ora Sumadhiya
197.00 pm
6
kovalen Radius
221.00 pm
3
176.00 pm
22
Van der Waals Radius
283.00 pm
4
231.00 pm
19
Bobot atom
226.00 Amu
26
40.08 Amu
99+
Volume atom
45.20 cm3 / mol
4
29.90 cm3 / mol
7
Nomer atom jejer
Potensi Valence Electron
20.10 (-eV)
99+
29.00 (-eV)
99+
Constant pola
514.80 pm
13
558.84 pm
9
pola Angles
π/2, π/2, π/2
π/2, π/2, π/2
Pola C / A rasio
ora Sumadhiya
ora Sumadhiya
Teknik Properties
Kapadhetan
Kapadhetan Ing suhu kamar
5.50 g / cm 3
99+
1.55 g / cm 3
99+
Kapadhetan Nalika Liquid (ing mp)
ora Sumadhiya
1.38 g / cm3
99+
Strength tensile
ora Sumadhiya
ora Sumadhiya
viskositas
ora Sumadhiya
ora Sumadhiya
meksa beluk
Meksa beluk ing 1000 K
ora Sumadhiya
25.50 (Pa)
3
situs kelenturan
nyukur pengaturan
ora Sumadhiya
7.40 GPA
99+
pengaturan akeh
ora Sumadhiya
17.00 GPA
99+
Young kang pengaturan
ora Sumadhiya
20.00 GPA
99+
Poisson rasio
ora Sumadhiya
0.31
13
Properties Teknik liyane
NA
NA
Magnetic Properties
Ciri Magnetic
Gravitasi tartamtu
5.00
99+
4.58
99+
Nindakake Magnetic
nonmagnetic
diamagnetic
Properties Listrik
Property Listrik
NA
Arman
resistivity
100.00 nΩ · m
31
33.60 nΩ · m
99+
konduktivitas listrik
ora Sumadhiya
0.30 10 6 / cm Ω
6
elektron Affinity
ora Sumadhiya
2.37 kJ / mol
39
termal Properties
Kalor tartamtu
0.12 J / (kg K)
40
0.63 J / (kg K)
7
Graham Kapasitas kalor
ora Sumadhiya
25.93 J / mol · K
34
doyo termal
18.60 W / m · K
99+
201.00 W / m · K
5
suhu kritis
ora Sumadhiya
ora Sumadhiya
Expansion termal
ora Sumadhiya
22.30 μm / (m · K)
19
enthalpy
Enthalpy panguapan
ora Sumadhiya
150.00 kJ / mol
99+
Enthalpy saka Fusion
ora Sumadhiya
8.54 kJ / mol
99+
Enthalpy saka atomization
163.00 kJ / mol
99+
184.00 kJ / mol
99+
Standard molar Entropy
71.00 J / mol.K
14
41.60 J / mol.K
36
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