Tiao Zhi Nei Rong

Strontium

Chok-ceu Wikipedia

Chang-ko Ming-deng-ngu Hang-ce gi beng-buong. / Can Kao Min Dong Yu Han Zi Qi Ban Ben .

{{cite journal|url=http://bernath.uwaterloo.ca/media/149.pdf|title= High-Resolution Infrared Emission Spectrum of Strontium Monofluoride|journal=J. Molecular Spectroscopy|volume=175|page=158|year=1996|doi=10.1006/jmsp.1996.0019|bibcode=1996JMoSp.175..158C|last1=Colarusso|first1=P.|last2=Guo|first2=B.|last3=Zhang|first3=K.-Q.|last4=Bernath|first4=P.F.|accessdate=2018-06-03|archive-date=2012-03-08|archive-url=https://web.archive.org/web/20120308063843/http://bernath.uwaterloo.ca/media/149.pdf|deadurl=yes}}"},"oxidation states comment":{"wt":"(a strongly [[base (chemistry)|basic]] oxide)"},"electronegativity":{"wt":"0.95"},"number of ionization energies":{"wt":"3"},"ionization energy 1":{"wt":"549.5"},"ionization energy 2":{"wt":"1064.2"},"ionization energy 3":{"wt":"4138"},"atomic radius":{"wt":"215"},"covalent radius":{"wt":"195+-10"},"Van der Waals radius":{"wt":"249"},"magnetic ordering":{"wt":"[[paramagnetism|paramagnetic]]"},"electrica l resistivity unit prefix":{"wt":"n"},"electrical resistivity at 20":{"wt":"132"},"thermal conductivity":{"wt":"35.4"},"thermal expansion at 25":{"wt":"22.5"},"Young's modulus":{"wt":"15.7"},"Shear modulus":{"wt":"6.03"},"Poisson ratio":{"wt":"0.28"},"Mohs hardness":{"wt":"1.5"},"CAS number":{"wt":"7440-24-6"},"isotopes":{"wt":"{{infobox element/isotopes decay | mn=82 | sym=Sr\n | na=[[synthetic radioisotope|syn]] | hl=25.36 d\n | dm=[[electron capture|e]] | de=- | link1=rubidium-82 | pn=82 | ps=Rb}}\n{{infobox element/isotopes decay3 | mn=83 | sym=Sr\n | na=syn | hl=1.35 d\n | dm1=e | de1=- | link1=rubidium-83 | pn1=83 | ps1=Rb\n | dm2=[[positron emission|b+]] | de2=1.23 | pn2=83 | ps2=Rb\n | dm3=[[gamma radiation|g]] | de3=0.76, 0.36 | pn3= | ps3=-}}\n{{infobox element/isotopes decay | mn=84 | sym=Sr\n | na=0.56% | hl=-\n | dm=([[double beta decay|b+b+]]) | de=1.7867 | link1=krypton-84 | pn=84 | ps=Kr }}\n{{infobox element/isotopes decay2 | mn=85 | sym=Sr\n | na=syn | hl=64.84 d\n | dm1=e | de1=- | link1=rubidium-85 | pn1=85 | ps1=Rb\n | dm2=g | de2=0.514[[delayed nuclear radiation|D]] | pn2= | ps2=-}}\n{{Infobox element/isotopes stable | mn=86 | sym=Sr | na=9.86% | n=48 |firstlinks=yes}}\n{{Infobox element/isotopes stable | mn=87 | sym=Sr | na=7.0% | n=49 |firstlinks=no}}\n{{Infobox element/isotopes stable | mn=88 | sym=Sr | na=82.58% | n=50 |firstlinks=no}}\n{{infobox element/isotopes decay2 | mn=89 | sym=Sr\n | na=syn | hl=50.52 d\n | dm1=e | de1=1.49 | link1=rubidium-89 | pn1=89 | ps1=Rb\n | dm2=[[beta decay|b-]] | de2=0.909D | link2=yttrium-89 | pn2=89 | ps2=Y}}\n{{infobox element/isotopes decay | mn=90 | sym=Sr\n | na=[[trace radioisotope|trace]] | hl=28.90 y\n | dm=b- | de=0.546 | link1=yttrium-90 | pn=90 | ps=Y}}"},"isotopes comment":{"wt":"Decay modes in parentheses are predicted, but have not yet been observed"},"naming":{"wt":"after the mineral [[strontianite]], itself named after [[Strontian]], Scotland"},"discovered by":{"wt":"[[William Cruickshank (chemist)|William Cruickshank]]"},"discovery date":{"wt":"1787"},"first isolation by":{"wt":"[[Humphry Davy]]"},"first isolation date":{"wt":"1808"}},"i":0}}]}">
Stronti 38Sr
Calci
|
Stronti
|
Bari
Rubidi - Stronti - Yttri
ngoi-guang
silvery white metallic; with a pale yellow tint[1]
gai-huong
miang-ce*hu-ho*seu-so Stronti (strontium)*Sr*38
nguong-so loi-biek gieng-tu ging-suk
cuk*ciu-gi*ku 2*5*s
nguong-cu-liong 87.62(1)
dieng-cu ba-buo

[Kr] 5s2
2, 8, 18, 8, 2

Stronti gi dieng cu ceng (2, 8, 18, 8, 2)
Lik-su
huak-hieng William Cruickshank(1787 nieng)
hung-lie Humphry Davy(1808 nieng)
uk-li seng-cek
uk-tai go-ta
mik-do (ciek-geung sek-ung)
2.64 g*cm-3
iong-dieng seng-au gi ik-ta mik-do 2.375 g*cm-3
iong-dieng 1050 K,777 degC,1431 degF
be-dieng 1650 K,1377 degC,2511 degF
iong iek 7.43 kJ*mol-1
ke-hua iek 141 kJ*mol-1
bi-iek-ung 26.4 J*mol-1*K-1

cing-ke-ak

ak/Pa 1 10 100 1 k 10 k 100 k
ung/K 796 882 990 1139 1345 1646
nguong-cu seng-cek
iong-hua-tai 2, 1
((a strongly basic oxide))
dieng-ho-seng 0.95 (Pauling bieu-do)
dieng-lie-neng

da 1: {{{1st ionization energy}}} kJ*mol-1
da 2: {{{2nd ionization energy}}} kJ*mol-1

da 3: {{{3rd ionization energy}}} kJ*mol-1
nguong-cu buang-geng 215 pm
geung-ga buang-geng 195+-10 pm
Van der Waals buang-geng 249 pm
gi-ta
cing-ta giek-gaiu

face-centered cubic

Cu-seu paramagnetic
dieng-cu-luk (20 degC)132 nO*m
iek-do-luk 35.4 W*m-1*K-1
pang-diong hie-so (25 degC)22.5 um*m-1*K-1
Young muo-liong 15.7 GPa
ceng-ciek muo-liong 6.03 GPa
Poisson bi 0.28
Mohs ngaing-do 1.5
CAS ho 7440-24-6
coi ung-diang gi dung-oi-so


dung-oi-so hung-do buang-soi-gi huong-sek neng-liong(MeV) sang-uk
82Sr syn 25.36 d e - 82Rb
83Sr syn 1.35 d e - 83Rb
b+ 1.23 83Rb
g 0.76, 0.36 -
84Sr 0.56% - (b+b+) 1.7867 84Kr
85Sr syn 64.84 d e - 85Rb
g 0.514D -
86Sr 9.86% ung-deng, dai 48 ciah dung-cu
87Sr 7.0% ung-deng, dai 49 ciah dung-cu
88Sr 82.58% ung-deng, dai 50 ciah dung-cu
89Sr syn 50.52 d e 1.49 89Rb
b- 0.909D 89Y
90Sr trace 28.90 y b- 0.546 90Y
Decay modes in parentheses are predicted, but have not yet been observed

Strontium se sioh cung ging-suk, ia se sioh cung hua-hok nguong-so. Nguong-cu seu-so se 38, hua-hok hu-ho se Sr.

Hua-hok seng-cek

[Siu-gai | Gai nguong-ma]

Chang-ko cu-laiu

[Siu-gai | Gai nguong-ma]
  1. | Greenwood, N. N.; Earnshaw, A. Chemistry of the Elements 2nd. Oxford:Butterworth-Heinemann. 1997. ISBN 0-7506-3365-4.